wile picking a property in conn, we came across this 1970s Rupp Mini Bike all torn apart and in milk crates inside an old trailer, lets see if we can make it ride again,

No wheels huh for the mini bike. Oh there's one rim right there. Oh it's a crate of parts right here, yeah. I think it's a real rough.

It's got a rough seat on it, yeah a tank yeah, that's pretty cool! We've been digging out parts see what we got on this one. That's a clutch top yeah, that's what those other parts are too over. There should be a jack shaft or parts for the jack shaft yeah. I bet you get 70 miles per gallon, where's the mirror! You need to be on the mirror that you rotate and we're all loaded up and ready to go.

We got the, i think, is a rup mini bike, double check on that in the future. But it's missing a bunch of parts. I don't think it has the correct rims for it. They look like rims off of something else.

They have italy written on them, so we're just not sure and there's a bunch of parts inside here. I do think that's the correct fender. I don't know about the muffler, it looks like somebody might have made that and then possibly the correct shocks but we'll see it'll be a good project for us. Well, it's a few months later, and the only thing that happened to this is got unloaded from the truck and shoved in the corner so still sitting over here in the crate and all the bits and pieces are right around it.

Let's go: throw this stuff up on the bench, we'll get an idea what we got and where we need to go so through all the parts up on the bench, get a better idea of what we do and don't have the rims at first, i thought were The incorrect ones, because i quickly looked up on my phone and it said that they came with 10 inch rims. These are 12 and they said italy on them somewhere. So i thought you know somebody took something off of something else was trying to make them fit, but they may be the correct ones engine i'm not sure of. I do know that they sit on a tilt on the rupps.

They see the bottom plate is leaning forward and i thought they had a carb that compensated for that and have like a little bit of a bend on the intake where the the carburetor sat flat. So that may or may not be the right one. Don't know it's like somebody's definitely been in there huh. I wonder if they didn't get spark and we're trying to chase spark.

Maybe all the wires are off of the uh coming off the back and like they dug in to try to figure out what was going on and then gape up. Maybe cargo actually looks like it's just sitting on there. It could be blowing up we're gon na find out the back wheel, kind of the same scenario. All again it looks like it's fairly complete.

I think that's the right sprocket for it see if it lines up to those bolt holes. Yeah might be that fender looks right, shocks, look like they are correct. A bunch of hardware that is in here looks like the bearings for the wheels and about maybe 10 of the bolts that hold everything together. This looks like the ratchet for inside the pull start.

Not quite sure that might be for the clutch too, i'm not again, not sure this looks like it's probably for the sprocket yeah spacer axles. That one looks correct this one, not so much, i'm not sure. What's going on with that, but i don't know if they used that for an axle or that was just thrown in the box with it and we are missing an axle. Muffler looks like it again, i'm guessing.
Maybe it's off of something else. That would go something like that. Maybe is our ball hole all right. What's that right there, and i wonder if that was meant to bolt something like that.

I guess we'll have to figure that out clutch it's like two pieces of the clutch, so this would be the back half and not sure. If that's missing anything or not, i would think there'd be some kind of spring that pushed together or held apart on those two and then the front clutch. Oh there's where that piece goes goes inside there. So my guess would be something like that: we'll screw that later another spacer a couple of handle hand brake levers, it looks like a throttle.

Cable. I don't think that's to this bike that might have been to a bigger bike and there's that rim protector two protector. Forks, look like they're complete here's another throttle here connected to the cover and it's either one match the grips that are on it. The levels don't match those don't match all right, so kind of cancels.

Those out, i would say, i'm probably going to go, throw the front rim on it just so we can lock it in the wheel chuck and hold everything from kind of bouncing around and we'll go from there. I also want to take a peek in the tank too see we got for us yeah. It's definitely not the correct hardware for the front wheel, but it's good enough to hold it. Let's see what the tank looks like what we got actually not too bad a little bit of flash rusting there.

I don't see anything for a little bit right there, good yeah. I don't think that's the correct engine for it. I i may be wrong, but, like i said, i thought that they had a manifold that made the carburetor going straight across, but this carb has a float bowl. I should say uh that is, can run in any direction.

It can run sideways upside down, really doesn't matter. It's got the diaphragm set up on it. Nobody's got a float ball with a float inside of it, and you got a little bit of room to work with as far as how something how far something can lean. But it's still operating, but this is kind of meant to run in any direction.

So who knows? I say we start looking probably into the engine and we are missing a bunch of pieces for the bike itself, just for me quickly, assembling it real fast. I could tell that uh, you know a bunch of bits and pieces of probably uh been long gone and maybe got moved a couple of times and from there gone to other places, it might be there on the floor somewhere. I don't know, but anyway we're going to worry about that when the time comes, so, let's see about uh, we'll put a screwdriver down the spark plug hole, see if the piston is going up and down. This is a little briggs flathead.
What that means is the valves if you took the head off there's no valves inside the head, it's flat. The valves are inside the block, there's one here and there's one here going upward. So the piston is off in this direction. If you can get to it or not, get down on the board just yeah, so it's going up and down that's a good sign.

I'd say i don't know yeah somebody's been in here: let's go get this stuff off. There might not even be anything behind here. Let's go get that off and there should be a set of points and a condenser. Let me uh get a pry bar and a hammer set up and give it a whack that'll pop right off.

Yep, don't even need it well, the cover is still there. The reason i was questioning that was because the um in the pile of stuff there's one of these one of those. Let's get these two screws out, that's all there yeah. Those points are definitely cruddy, though, see all the white.

That's running, focus yeah! You see all the white crap that's around them, they would never make spark. So you go clean. Those let's go check the gap on it. Actually, that's the closest that looks about right.

I think it was supposed to be i'm going to guess. Probably around 16., usually like between 16 and 20, or what points are all right. I'm gon na go drag a file across that put a little bit of uh clean solution on it afterwards and we'll pop the cover back on and see. If we can figure out where to spin it and we'll see if we can spark wrecking the place well, that'll make it easier to clean yeah yeah, there's all the crap, that's on top of there.

It's all baked off white yeah that wasn't gon na have spark. In a million years, i'm going to take a little bit of time clean them up the best. I can, both as i reassemble, that that side is nowhere near as bad. You can use that ohmmeter to check and make sure it's just an open.

Enclosed signal is what it's doing. You could just go check on the wire, as you turn, and the points open and close to see if you get a ground and an opening ground than an open signal from it. So i got the coil wire off of it out of the circuit and we're just on the this would be the the kill switch. It will go up to a button on the handlebars or, wherever and that'd, be a kill, switch to shut it down when you're going.

The points are in the open condition, open location, open yeah, you know if we close them right, there should go to zero. So our signal is working there, but i noticed when let's go bump, you up a little bit heads up going across the coil is the wire going just coming off the coil. It's not connected to anything else. It is um dead ground.

Usually, i think it's supposed to be about 10 ohms, something like that have a little bit to it right now, it's showing as a direct short. So i i don't know whether that is going to be the issue or not. It may have a bad coil. I'm going to go hook all that stuff back up, we'll pop the cover on it and we'll get the flywheel on again.
Let's try to get some kind of way to spin it and see. If anything comes out of the bar, i got it back together, not really a good way to spin it, maybe with a drill for me. Let's see if we can just get it by hand, maybe we're gon na look right in there. Oh yeah, now the camera's shaking every hour, i'm trying to do it right there, nice.

That was easy. Let's get uh an eyeball on the pull start see if that's got enough to do what it needs to do and that needs to pop out generally. I think it came out the center of the top there right about. Doesn't look very correct to me see if you can tuck that behind there motor's not even tight to the on the frames just sitting on there give that a seat that'll yeah, i'm gon na get rid of this throttle.

Cable. Another thing is kind of odd too. You notice, it says, breaks the strap, but it's upside down, like whatever this would have been used on, would have been like that. That's weird huh, all right! Let's go get that cable out of our way and we'll try to get a couple of screws in just to hold the cover on.

Maybe we'll drop oil down there probably wouldn't hurt huh. Well, let's just say that cover doesn't fit exactly great. We got two screws kind of started in, let's go yeah, we got there's some spark happening, let's go throw the plug in and see if we get any compression. I see that does anything for us.

Oh yeah, this doesn't sound too bad um. One of it has any oil in it, though, because the fill is on the front. I see the angle it's sitting on so generally it would be right across the engine like that yeah. I don't think we have anything in there now, there's nothing in there uh.

Let's to how would the original engine be for oil would they have? Maybe it was the other way around? Maybe this one was plugged off see how that one's got the cap on it. I wonder if it was the other way around where that was capped and the other one was filled, and you just you just changed the level to it. Let's get rid of the block, that's underneath it it'll allow the bike to kind of sit down more flat, we'll get some oil in it and we'll see. If you get her to cough and fire yeah that might be an issue.

It's got two different screws in it too uh we might be able to just dribble a little bit of fuel. You get oil in it yet, but i want to dribble a little bit of fuel down the intake and get that to cough over a little air. Cleaner in there hmm, i think, we'll just shove a little bit of whatever in it for now and we're just trying to get an idea with her. What are you doing? Take it come on now, you're, just making a mess must be some thick oil.

What is that yeah? That would do it all right, we'll even it out a little bit, how about we chase it with some 0 20. that'll equal out to about a 10 30 right. Look how easy that goes, then we'll let that go so! It starts pissing out the top. This is all going to come back out of it anyway.
Just want something in there. What's that sucker take, i think, we're there yeah we're filled up right to there. So that's on an angle, something like that. All right, let's get our little gas, turkey baster, we'll dribble a little bit of fuel in it and give her a yank and give her a listen too this little bit of gas in a bottle.

Let's go throw some of that without that on there in the intake, i don't know: if it's going to go, it's got to draw it uphill, give it a shot, see what that carb has to offer us again, there's a diaphragm in there more than likely. That has probably crapped out. I wonder if we could just take a regular like snow blower carburetor, i'm gon na go. Take a look at my stash.

What i got see if we have anything that can bolt up to that flange, if not we'll get into that and we're up in the stash. Let's go hunting a little bit. Those are kind of like marine carburetors. Let's get it now, let's see in which way's in at the end, let's go grab one of those real quick because wasn't that manifold on an angle right at the engine, we'll grab that it's a motorcycle car version.

Another one of those but over here is where i was going. It should be all motorcycle stuff and like this yeah, so i was thinking like some new something that's kind of big with a jet and everything on it. We'll grab that and unless we get that's kind of tiny, that's broke anyway, and then this should be just a force, no lower. This is what i was thinking all along coming, maybe something like that.

Now we can go on it's just kind of regular float ball. We have to go again figure out how to make a level, but let's go see i'm walking around getting my award. I have one of those. I think, though that's an ah-47 engine and that car looks very familiar.

It's got the same bowl on it on the bottom, so we got that we'll hold that in our memory too, just in case we need that one. So, let's grab that one. I had that weird that one let's go just see if that does no way way too big. You have to be able to use that manifold yeah that one this is much wider, that's probably an inch and a half across those, probably about two and a quarter.

I guess i'm gon na bolt that and see how that stuff lines up to any of the other pieces so decide to look at some images and get an idea what the motor is supposed to look like and how the setup is. I'm cheating, i know, but it looks like you can see on that carb there oops this is working for us or not, but you can see how the air cleaner is sitting straight and so that manifold comes out. There's the angle of the pipe right and then they switch it so that manifold is not going to work for us. The thing is even like on that pull start see how it angles backwards in ours, it's going straight up and then that's welded.
I can't even change the angle on it that so that's fixed unless you get another cover and go for something so go change that up, i'm kind of wondering, maybe if we should maybe go for a different motor that may be a little bit better horsepower kind Of thing, so i'm going to go check my stash. The only thing that's kind of important is that we make sure the output shaft that the comet clutch sits on is the same as this. So that's what we need to we're wherever it ended up what'd. You do with it.

I saw you behind us yeah, so i'll bring that back with me and we'll see if that will line up to anything at the home garage. I mean we'll steal that motor and we'll go with something like that. Instead of putting all the time and effort into this one, this one looks very small, i'm guessing. That's, probably like a three and a half horsepower, i'm sure there's a tag on it telling us somewhere, but let's go see what we got at home.

So we are at the home stash of different engines. You can see why i wanted to go pick in here. A little bit see what we can come up with. That's gon na be small and we need a at least 5 8 shaft.

I measured on it for that clutch setup, so i was thinking up. Here's there's a mouse. What are you doing? Making messes get out? You seen the same thing to me: hey you're busted and you trash everything. We got you little bastard anyway, as we were thinking's gon na be stuck on the side of my neck, drawing blood.

We get that little briggs right there, i'm not crazy about that type of carburetor got a honda in the back. That's not gon na look aesthetically correct and that's too big we've got clutch setup. What's this stuff, let's go bring this with us. I don't think we need any of that, but we'll take that.

That's like an earlier version of that engine all tore apart. I was hoping i had something that was more. I put that one away in 13, so it's almost 20 22., so 89 years old and sitting there, oh, maybe we will grab. I got to take a look at what it's got for the shaft.

On the other side, plus it doesn't have a pull start. It's missing something. Maybe this briggs will spin this one around see what it has on the back side of that and what else we got just that that one right there right there's a honda way in the back. Maybe this one, this tecumseh, it's got a regular float pole on it.

Let's go take a peek at what they are, so i pop a few them down. Looked at them, the only one that's got a 5 8 shaft. Is that one? And i guess it's a mirror image brother over there on the shelf. What are they for horsepower? Let me see not much so maybe we'll grab those, and the other thing too, is that i was hoping to find one that had to fill on the upper side.

Not that lower giving us that same problem that we have now. Oh, that one i'm not sure, that's probably a five or an eight, and it's got a regular like mini bike, clutch on it and that one's that's three-quarter. And it's like an inch or an inch and a quarter on that. That's a tapered shaft for a generator kind of set up man.
I think we're out of luck, maybe leave the mice be, as they were time to feed the wildlife that one yeah, that that block is just going to be too big to fit in that frame, and this one is a three-quarter shaft too all right. Well, we're gon na go grab at least one of those we'll bring them with us and worst case at least we'd steal. The pull start off of it with the other ones, all banged up and screw holes, don't even line up and maybe we'll go with. One of those blocks - i clapped this one to the bench, just get a quick little assessment on this one and get an idea what we got.

It definitely feel between the two of them, we'll be able to get a decent one together, but let's just give it a quick. I wouldn't say it's great. I wouldn't say it's terrible. It's got oil in it.

I already checked that let's go pop, that plug out of there spin it over see if it has spark it's good compression. Now we suspect this. This has points too so could need a cleaning thing, i'm going to zap myself. Maybe let me see we get anything.

Nothing all right, so i now we got going there and all the same stuff probably need to do this, one that we did to the other one, but one of those will run. Let's go back to the bike. I think what i want to do is possibly i'll throw the back wheel together with whatever i can find. As far as the axle and bearings and i'll clean up like a bearing is supposed to sit in there and obviously that's not going to work very well.

Like that, so i'll take a minute i'll clean these wheels up i'll get the new i got new tires and tubes over there, probably throw one on on the back. Get that set up, maybe throw a couple. You know, i don't think we have the bolts for the shocks but we'll throw something in there just start putting pieces in place and the reason why i want to do that. I want to see what the actual, however, the bike leans, because we have to make an intake manifold to fit that and i got to get the right.

You know. However, the bike is leaning. I want to try to come straight back with a carburetor, so in the back wheels they have two bearings, but you got ta have a spacer in between and i found a piece of jack handle. It was about the right diameter for the axle and cut it down so that when you clamp down on it, you bolt the axle together you're pushing on the inner race.

If there was nothing between the two bearings and you went to go crush it, you would preload the bearing, and it wouldn't want to turn on you so made my own got all cleaned up in the tire put on there, trying to figure out what the name Of it is how would you pronounce that i come up with junkie? I don't know, that's a great name for a tire or not, but uh. I think i might have thought that one twice that that bolted up and the axle is all the way forward on the two stops as far as it would travel and i'm looking at it. If you eyeball that sprocket to the front one you just kind of look at the whole assembly in general, it looks like the tires tweak this way and maybe leaning a little like that. I don't think the shock is doing it's put.
Putting the other shock on the other side is not going to make much of a difference. I don't have it on there, because it's missing the bushings that go in it. So that's not going to help us, but i have a feeling again the fact that it was a kid's dirt bike that it took a wreck and i think the rear swing arm is just out of whack. I think it took a hit.

So my guess is, we should probably press it or influence it in the direction that it needs to go. I changed the bolt out here. I had some play in it and i got rid of that. There's a big rubber bushing inside here, so this gets bolted down solid and it kind of just rocks on the bushing kind of like how the shock does all right.

So maybe we should take that motor's just sitting there anyway right just yeah, it's not even tight. Maybe we'll just get that right off of there we'll get the whole thing out of the bench, and i wonder if we can. I don't know if it's better leaving it on the bench and strapping it down and trying to just persuade it like with a big pry bar or if we should set it down on its side and kind of jump up and down on it all right. I figured we'd get that squared away first before we start, you know continuing on lining stuff up, because if this bra, let's grab that square, so that should line up there.

How far are we off? I wouldn't say it's terrible right like that, should be just a little bit. You could probably even get it with the the adjustment that's on it, but i do think it's kind of out of whack a little bit, because even just looking, i'm looking down the center of the tire to where this tube goes up. That could be bad too. It could be just the seat right that whole upper support is, is kicked that way.

What's that got for me, underneath it yeah, it would be that bar bent too, that pan's welded on it doesn't come off. I don't know if that is supposed to be sunk down like that hmm something's, getting bent and just doesn't know it yet. I'm gon na freehand you here for a second. I took the level or square rather put it up against the swing arm in the back, and i look down on the gap and it looks to me i get a better shot at that as it goes from the rear to the front.

It increases not a great amount, but is definitely tapering tapering out, like that. Let's go check the other side, and now i'm not that concerned about the offset. You know how close it is to it. But again i'm looking at the angle.
You can see it right on the sprocket right there, how much of an angle that rear swing arm is and it gets tighter. So i do believe we have an issue with the swing arm being kicked like that, so i'm going to try to see if we can influence that a little bit and that'll help out our chain alignment too. All right! Here's the plan you have a chain with a hook on it coming around weld it to a pry bar. I'm guessing get the pry bar to lean against that part of the rail right there.

We have it tied down and i think i'm gon na go put my foot against that tire. Get my hands on that and give her see what we get. It's like an accidental weight and a half, and i know it should probably lower the lift yeah. I got ta chain up something to the lift to hold it in place.

I think i'm gon na end up resorting to laying it down on the ground, but let's see if this helps us i'm going to bet that might have done something i broke it right way too far. The other way just kind of eyeballing it real quick. It actually looks fairly easy. Let's get that bar out of the way, we'll straighten it back up and we'll put a straight edge against the sprockets.

That actually looks better, though hmm, let's say, there's a slight improvement. It looks, it looks better, i think we're about halfway. There so i'm gon na go try that one more time, so i found a better way to do the visual. Let me just put it right on the sprockets on that engine.

That should be a straight line. That's what we're dealing with right there. So that's why? I'm trying to kick it over and it's not like. I don't feel that it's just off center, too far, one direction, the two spacers that were with the wheel, there's a shorter one on this side and a longer one on this side.

So it's already got the package kind of favoring that direction, but also you just look right up. You see where it meets that tube and you're looking down the center line, it's the center of it is like right on that knobby. So that's what i'm saying. I still think it's the whole thing's kind of kicked out that way.

I don't know if i'll be better off, maybe we'll take the wheel off. I think about that. So if i try to bend it this way right, so this arm is going out and this arm is going in. That bolt is going to rock it's going to rock like that.

Is that right and it's going to make it even worse? I think i should probably just stick with trying to make this bar pella parallel with the frame and that bar parallel with the the mounting pad and just maybe call it at that we'll do it try to do the best kicking the wheel in and out. I think we'll probably move that front sprocket around but thing is it was all you know who knows if it was all factory or not, but that's kind of the position. I see shims back in here that it was that's, probably set screws. I don't know if it's missing a tooth there you see how, even if i go to shim that more to the right, do i have it backwards.
If i put that spacer, which is shorter and that's the longer one, that'll get us out further, i'm gon na go screw around that a little bit. Maybe i just have it. I think it's a combination of all of it together is this thinking allowed audience participation. Well, it's looking better again, it was a combination of both, so i swapped those spacers around and what ended up lining up for us, too, is where the brake drum is.

There was a standoff back in here that holds the shock. I'm like what holds the drum from spinning and you'll see: it's got a slot in it and i'm guessing you run a bolt from this side because that's got threads all the way through it. This has this has threads all the way through, so you can. We can get a bolt in on that side or, if you run a longer bolt through it, you probably put a nut on it.

That'll keep that from spinning that looks like it lines up pretty good and i'll say down. The frame looks better than knobby's in the center of that pipe now and our sprockets, although are not perfect, definitely a lot better than what they were see. How we look here so there's our gap now so drop it in there, so that if we do a straight line, we're off by that much we're off by the with it, so the square's coming right to the edge right there. So we're close enough! I think we could probably just get the adjusters and work with the adjusters and tweak the wheel, just a hair, we're missing one of them.

I don't have the one for this side and that's the side that does all the work. This is the side that all the torque is on, because this is the side that the chain is pulling on all the time i'm talking about is this that cam? That's your adjustment. You rotate that around against that stop right there and it keeps the wheel from getting pulled forward. Uh, i'm gon na go look for a piece of chain, maybe we'll lay it on there and okay hook a drill to the one side of it and spin it into my stash chain, which is we need, that's what was on there.

That's all the links - and i don't know what that is. 35 - maybe let's just say that's kind of i eat it. I'll keep digging. What's this right here, maybe i'm gon na go late on the sprocket, see if this is it forget which one's, which i think it's like a 40 and a 41.

one will fit on the other one, like you see, yeah the more i'm trying to wrap that Around there, the tighter that's getting, let's pull them to one side. I don't think that's it again. I think one fits one way, but not the other. It's close close would be good for a belt, not a chain, though, what's this one that seems like it.

Maybe that might be it ted sure that might be so. I'm gon na go do a little bit of hunt and see what i can find yeah. So it's a 40 and a 41 the difference the 40 is fatter than the 41. I think it's the same chain, but once it's got a different width to it, what i ended up doing, taking a wire wheel and cleaning out all the teeth.
I think what was happening was the chain just wasn't being able to fit down in the groove. All the way, so it was making it tight all the way around. So that seems like it's definitely helped and improved it that front sprocket, though she's uh missing a tooth and the other ones are a little on the leaning side. So i'm going to go upstairs real, quick in our stash and see if you can find anything in a sprocket to replace that, if not we'll just run that for now yet another stash of stuff.

Looking for a real, tiny one, sometimes you get lucky! You go to tractor supply and they'll have it. I thought i seem to remember having a maybe it's over here more chain getting closer. I remember seeing a stash of tinier ones. That's gon na be way too big you're, not even looking grab that we'll dig a little what's in there all the gears you're not gon na.

Do it i'm gon na go pick a way in here, see what i can come up with one right down there. That's looking pretty close huh, i remember you did not feel me. Hopefully that's the right setup. Let's go check that out looks right.

Doesn't it let's see we got it's a little bigger, that's okay, that shaft in the center looks bigger too, though, huh go pop that one off of there it almost got a roll pin going through or that's a a set screw. It's got one directly across yeah. I think that's a uh, a roll pin, so you can wrap that out of there. Yes, you can take out a go.

I think it's going to go that way. It's moving. It's definitely not a set screw kind of looks like something got here, we're down the middle of it, though i need to get where you are i'll, bring you back. So it looks like a roll pin on the right, and my guess on that other one is a broken drill bit somebody put in there yeah, so i think, for now we are going to leave well enough alone and keep moving forward, because who knows how? The rest is going to work out anyway.

You see the angle that that is on just by putting the um punch in there. You can see that it is definitely not going towards that hole. It's probably broken off and kicked over. I don't know that could even be a punch too, that they tried driving to go drive.

What was left of the pin out and it's broken off in here either way. It's definitely going to put up a little bit of a fight we have. If i i'm going to take a caliper, i'm going to measure the diameter of that, we could always cut cut this right off out of here and then clean up the center. I think that's bigger and let's see what he says: yeah it's like that, i'm going to go upstairs, i'm going to lock this down and go upstairs real, quick, see if i got mine that has that id, if not we're going to run what we wrong.

So what exactly say it's the quietest that should do it's all the noise in that front sprocket. I think it's again that the teeth are just so stoved over i'll. Keep an eye i'll go to tractor supply, i'll measure it up and see if they have one, but we'll just keep moving on for that for now uh. Why don't we look into considering we're doing? You know power to the back wheel? Let's grab these clutch halves we'll clean these up again, i think we're missing a spring or something for this.
Let's clean all this crap up see what we got going on here and see if we can get this part of it functioning plus we got ta clean. The threads up and try to find a nut for that. Hopefully it's not reverse thread. Sometimes that kind of stuff is that looks normal.

Look at the very edge right there and i'm looking to see that it as i spin it does it drop off going this way. I would say yes at firewheel time uh that one slides in those pads and this one looks like it gets key to the outer shift right there and that one will be fixed. So i want to be fixed in it. The inner one, slides, tighter and looser.

I think again, there's just supposed to be one spring on the back side or this side. Do i want this. I always want to try to squeeze together right yeah. I don't want the other.

I want it's always trying to squeeze together. So as the front pulley changes gear ratio, it starts out the belts all the way in the middle and then as it revs up the belt comes to the outside and it gets faster and faster. I'm going to go clean up these sides and i don't have anything else. That's here that we can go look at for the uh spring that would be behind it or we just try to grab a spring of some sorts that'll just fit over the shaft and wing it.

Well. The only thing that i have that's the torque converter on it is the beaver. Let's go get that lid popped off of there and take a check what it's running for springs. Let's see we got so that has a big spring on the outside, but it's flipped around, because i have the i have the ramp up on the inside.

So yes, it's just got some kind of heavy spring in between there. Well, i pull that front one real, quick, too yeah, we'll worry about the front when we get there. Let's get this one set up first, which is going to need we're going to just try to find a spring. We need a red spring to go inside there.

Alright, so we need something that fits over this hub and it looks like the other. Half is probably about the same yeah. I don't know if it's supposed to sit, maybe right in that groove guess you're waiting, where's the bearing yeah it all spins together. So as long as we find something that either fits on the inside or the outside of that that's gon na be way too heavy.

We can now it's got a thing on that's for a seat, that's a spring for like a tractor seat. Actually, we'll start with that one to work with. I don't think we have anything else that large we do have another big box of springs over on the floor. Let's go check that out.
Now is that first selection, and this is why it appears to be awarded. I think the other ones unfortunately gon na be too heavy they're gon na be too light. Those looks like they're out of a sofa or something i wonder if we can take, you could always like heat one up and stretch it out. It is looking like that.

First, one that's gon na, be it's gon na. Be too heavy, though you know, you see all this little tiny stuff smells. This metals settles to the bottom. I'm gon na go poke around a little bit see if we can go find anything else before we start chopping.

What about that? Guy yeah? What if we stretch it out and what, if we stretch it out and then just cut out a section of what we need, you know poke around a little bit. So no luck! The only thing i came up with was like a motorcycle shock spring, but the compression on that's even more than than what this one is. So i think we're going to go with this. One thing i did find, though, was a fender and we're missing one, so that might be that's about the right radius too.

I'm not sure the one that we have is the front or the rear. Yet, but now we got two all right. So let's go eyeball. This up and put a slice in it, so that's gon na be all the way out right right there.

This is gon na be full travel, which is gon na, be its slowest speed, and i guess we're just gon na go with that measurement. I'd say right about: let's place it right about rather be a little bit more a little less, because you could always trim it down a little bit. Let's go, let's go call it right. There yeah.

I think that one's going to be too tight. We are past we're looking at the space on the front with a nut would run in and we are passed it by so right. There is where it would sit, it can't come out any further and then it would have to crush down quite a bit. So i think what probably we should do is this area really isn't doing anything, because these two are already touching.

So if i cut more off of there i'll lose more of the tension, so i think i'm going to slice it pretty right about there, so that the whole thing is spring again, that's not doing anything so a couple more out of it. So again we have to be up against the ramp that'll deal with that later, but right there is where it's going to sit just when it's bolted together and we got there's no oil on the. I don't know. I guess we can.

You know it's a placeholder for now we can keep moving forward. The problem is it's moving chalky on that. That needs a little bit of a little bit of lube some lube on her and cut her down a little. Everything plays better with lube right, so that right there is where it would sit at an idle and it needs to be able to go and get it off of there.

You would need to actually go all the way to there. It's not going to get top speed, but at least i think it will function for us. I can keep an eye out for something or order. The correct thing never know we'll put it all together.
None of this clutch could be any good. You just order. A home and set up it for now, i think that'll work for us, so we need a nut for right there. Hopefully there's one in there and the horde pays again good.

You need to set up a key in there now got a key in there, but we got to cut it cut that much of it off, so the nut can run all the way up again, this one's got to get fixed. You know what i mean that belt. This is already up out of the groove. It's got to get squeezed together even more than that, so that spring is still way too heavy, because that idle that should be about even with the sides again this belt.

I grabbed out of my stash upstairs. I don't even know if it fits this, but it's going to fit it. I see we clean up the shaft on there and we'll just put that you know i'm not sure which engine we're going to use yet, but we'll put it on there for a marker place and we'll start working with the front pulley and see how that stuff Works i'll play around with that front clutch now the way this works. The belt can touch this and it's able to spin, and so the two halves go together and this has a set of fly weights in it and as these weights.

So this cover with the just the tension, the belt there will hold those two apart. These are weights and they are surrounded by a spring, see the spring. That's on there there as this thing, spins the centrifugal force all right. These weights want to pull out and they will th.

This thing will grow. These weights will travel out away from that and they're on a taper, a taper kind of goes up against that bell right there, this they're, all tied together. All that is spinning together. So it's not like one they're, not sliding on each other, but it's running up and down in that cover and what it does again, it's going to fall apart on me.

I know i just hold on a sec, so just picture this cover being on there and those weights pushing off of that. So as those weights push off of that bell that can't move this ring gets closer to this one, so add an idle! It's like this. The belt is running real, close to the center and spinning on that collar when you rev it up, this belt wants to tighten up on it and the belt will creep up out of the groove and it's changing the gear ratio. So the belt's going around real close in the center as it picks up speed.

It goes on the outside, so uh so say. If it travels, say four inches around here and then on the outer for the same rotation of the engine. It goes uh. Four eight inches around the outer circumference, i'm just making numbers up so it'll, be twice as fast between idle and at full throttle and the one on the back is more just kind of like a a dummy.
It just kind of follows. Whatever the front does so as the belt as that front, one is getting want as the front one's wanting to expand. It wants to try to pull this belt down into the groove and that's what maintains the tension, and that spring has a lot to do with how much fight back that has on it. Hope that makes sense might make more sense when we get her up and running.

So i'm gon na go see about trying to get that assembly with keys and all that kind of stuff and hardware on the end of it and the belt on it and see how close we are. So let's decide to work with the white engine because it would slip onto the it was able to slip onto the shaft, the other one's kind of beat up on the end. It was fighting me, so that's all on there, like i said when it spins that inner one i don't can get up my fingers right now that inner one will come out as it spins that inner one will come out and tighten up on the the gap Of the belt - and it's got clearance for that bushing, the bushing should fit inside there. You can see how the gap gets.

Smaller it'll go to the point where okay top rpm at top speed, it'll close up like that, and then the belt will ride around that outside edge, giving it the top speed, but at an idle that'll, be all the way in and that belt will ride. All the way down on the bottom, like that problem is his belt, is the wrong one. It has a taper on one side and a straight on the other. It needs to have a taper on both sides.

Oh well and the other problem is this: engine is not threaded in the center. I know we have that other white one to work with i'm going to go check on that one at home and see if that one's threaded in the center. If not, we may go clean this up, that's kind of why i was chasing it. The way i was chasing instead of trying to get an engine working and then working to power, the rest of it.

I figured we'd go from the back wheel, drivetrain back through its components and up to the engine and will suit the engine to fit what it has for components. So i am going to probably hit tractor supply, i'm going to look for a lighter spring and possibly a sprocket see if they have any one of those. If not we're going to run what we have for now and also take a peek for the engine. As you can see, i even tried cleaning it up.

I actually think the uh, the key area might be a little on the tight side. I tried chaff when it actually just doesn't look like that was much for threads either. Does it maybe actually that one's good that one's got threads in it? Well, it's hoping to get further along and when i did i was i want to get to the point where i could yank on a pull start. Have it run for a couple of seconds run through the clutches and spin, the back tire, but we didn't get there? Hopefully we get there on the next one, though that's the battle plan uh again, like some shopping to do.

I was trying to work with what i had and sometimes that doesn't just doesn't pan out right, hi guys. So i guess this is part. One of i don't know how many it is to get this thing putting around, but uh i'm determined we'll get her all right guys without going to sign off, but thank you all for hanging out with me and have a little bit of fun really. I really appreciate you guys just kind of uh sitting back and enjoying just turning some wrenches with me and uh, not worrying about the rest of the troubles of the world right now and just kind of going back to having a little bit of fun right.
All right guys we'll do it soon see ya, yeah, just a quick little mock-up through some pieces on there. The front fender is the one that came with it and it just attaches to the shock housings and the back the one that we found, i think, should do pretty good. The idea is just try to keep it from flinging mud up into the air cleaner. On a carburetor, you know up inside there that, and you know up your ass through the muffler on there.

I think we can modify that to fit on the whatever engine we go to use. Belt system looks like it's going to be fairly decent too bad. That belt doesn't have the taper on it. That looks like it would actually fit the bill size wise, because that engine does slide forward and back too i'll see what i got.

I might have some other stuff at the house too. I'm gon na go check on my stash over there. It's pretty good, though, for a mini bike. It's more like a motorcycle compared to the stuff that was popular.

You know in the 60s and 70s looks pretty decent. It's like if yeah. If you're a kid, you definitely wanted this over a mini bike with little eight inch wheels on it, suspension and everything. You know all right now.

I'm done promise that worked out well.

By Mustie

16 thoughts on “Basket case rupp mini bike part1”
  1. Avataaar/Circle Created with python_avatars Patrick Killilea says:

    The rear swing arm and shock positions look totally custom highly modified and super trick bicycle frame for the day…. LOL.

  2. Avataaar/Circle Created with python_avatars Matt D says:

    Seems like the seat frame is bent. The handlebars looked even with the back of the bike. BTW, time to give that very nice, metal yardstick some love!

  3. Avataaar/Circle Created with python_avatars Eric roadking says:

    Awesome road Rup roadsters , black widows and Honda Z 50 minitrails as a kid all great bike and tons of fun!! Good job Mustie !!

  4. Avataaar/Circle Created with python_avatars Zach Almond says:

    Glad I watched the entire video! It is enjoyable watching Mustie1 honest television 😂 and the teaser at the end of the next part has me waiting for part two

  5. Avataaar/Circle Created with python_avatars tfastlane says:

    The springs that you said look like they go to a sofa look like the old anti-gas theft device. They came out back in the 70s or 80s and you twist them down into your gas filler tube, to keep thieves from getting a siphoning tube down into it.

  6. Avataaar/Circle Created with python_avatars Braxton Nelson says:

    It's always a good day when you fire up YouTube and there's a fresh Mustie1 video waiting for you! Thanks!

  7. Avataaar/Circle Created with python_avatars Stovebolt LVR says:

    I couldn't wait to ride my first mini bike. I had no throttle cable or brakes so I wired it wide open and used old work boots to stop. Point it and hang on!.

  8. Avataaar/Circle Created with python_avatars Audio Tech Labs says:

    We’d. thriller-killer! The teaser was the best! Can’t wait for part 2! Love from NW Colorado. Thanxz

  9. Avataaar/Circle Created with python_avatars Flappy DUB says:

    Dont't YOU DARE TOUCH THE Amphibious…… NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

  10. Avataaar/Circle Created with python_avatars Todd Scholes says:

    i would like to come there someday and work with you a small engine project, it would be kind of kewl to see how you do your process of making a bike from spare parts lol

  11. Avataaar/Circle Created with python_avatars P MAE says:

    The heavier the spring the higher the engine rpm as the clutch shifts to higher ratios.

  12. Avataaar/Circle Created with python_avatars Mark Hamilton says:

    Yes the 40 link and the 41 link chain has the same spacing but the 40 link is wider. So if you pit a 40 link chain on a 41 gear it will give you a LITTLE side slop and help prevent the chain from walking off the gear.

  13. Avataaar/Circle Created with python_avatars dogiit1 says:

    Tractor Supply has mini bikes why your there just pick up a whole bike throw that one in the dumpster we will never know

  14. Avataaar/Circle Created with python_avatars dogiit1 says:

    This is what happens when your doctor and your wife says you can no longer ride a bike

  15. Avataaar/Circle Created with python_avatars Keith Matthews says:

    Mustie1's stash is like of of the seven engineering wonders of the world. The freeloading cheese eater has to go though.

  16. Avataaar/Circle Created with python_avatars Hit the ground running says:

    I had a Rupp tt500 when I was a kid. 2 speed clutch. Fastest mini bike in the neighborhood.

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