A Coleman BT200X Mini Bike With Clutch Issues & More - Salvage 1 Bus Life Adventures EP24

[@janicefullerton6201]

Thank you for such a pleasant video and you truly went step by step to find out what is the mechanical problem with this engine if no one else I really appreciate your video thanks again and keep them coming great job

[@Buses2Bikes]

Thanky thanky for the kind words. More videos are coming. It's just been a hellacious few months since Oct trying to get anything done. But we're gearing back up and will have new content out shortly. Thank you for being patient!!!!

[@GuitarAudiologist]

I just got one of these used for a song and a dance. Mine looks more used than yours, and I'm a big guy too, but mine will do 23MPH (stock) on a flat road. Has some good get-up-and-go too, it'll go from 0 to 23 in a few seconds with no mods done. So something is definitely off here. They all vibrate quite a bit though. Thanks for showing the clutch disassembly, I think mine could use some grease to quiet it down a tickle.

[@Buses2Bikes]

23mph without mods is pretty good. You got a good vintage. Before you take apart your clutch, just drop a little bit of engine oil on to the crank shaft area the clutch mounts on. Just a few drops. Then spin the clutch by hand a couple of times to work the oil in. That should be enough in most cases. Tearing down the clutch like what I did was because the clutch had been abused and neglected and really needed it.

[@kimfixesthings]

I have 2 coleman bikes and one is a bt200x in the same orange. I like the styling of the frame better than the regular 200 with the fake tank. Be aware that the shaft on the 198 motor is 16mm, not 3/4 like the predator engines, you would need a different clutch. Might also be some different threads metric vs standard fine thread between the 2 manufactures, so to avoid stripping threads out of holes, be aware and take caution. looks like you are hinting to have found the problem in the next video, so I will watch for that and comment more then. Fun project!

[@Buses2Bikes]

Agreed. The BT200X frame looks much more stylish than the CT200u. But I don't think I will let that stop me from getting one of them in the future. Come to think of it I'll prolly end up getting one of each frame style out there when it's all said and done. Absolutely going to have to be careful moving forward with all the mix of bolt and nut sizes. Just on this bike alone there is a mix of metric and standard. Then throwing in new engines and other Go-Fast parts..all made who-knows-where.... it's going to be fun keeping track of it all.

[@sekovittol3124]

@@Buses2Bikes Isn't USA the only country in the world that hasn't adopted the metric system?

[@Buses2Bikes]

@@sekovittol3124 A handful of countries still use the standard system. USA and Myanmar are 2 I know off the top of my had. Metric blows. The rest of the world needs to come back to the fold.

[@sekovittol3124]

@@Buses2Bikes Metric is based on 10's and decimals, Standard is based on fractions. Maybe you'll see someday that metric is indeed simpler to understand and implement. But honestly, a lot of people here in Canada can relate to an inch better than a centimetre, but understand kilometres more than miles. It depends on what you are accustomed to really.

[@holdenharvey783]

What do you mean by zip tying the govener spring? I bought a used bt200x today and cut that tab off to let the bike open up a little more, I then took the gas tank off and cut the govener spring a little bit and bent the hook shape back into it to make the spring tighter, now when I turn the bike on it just goes on its own, any ideas on why?

[@Buses2Bikes]

By shortening the governor spring you are forcing the throttle to stay wide open. By zip-tying the spring you just prevent the governor arm from moving inside the engine. You can replace the governor spring with a new one then zip tie it to remove the tension or....crack the motor open, remove the governor and arm and just be done with it altogether.

[@fatbuddycat]

I have to go over a clutch that came with my cc100x....it seems to have slipping issues but the thing feels new. I suspect oil all over the inside of the bell.

[@Buses2Bikes]

I'm finding that the centerfugal clutch has issues when riders are of bigger stature. They struggle to work properly. I fiddled with this clutch for days after shooting this video and couldn't get the performance to improve to where I felt it should of been. Next I'm going to try it straight chain and if that doesn't improve things...time for the radical upgrade!

[@davidjessee7701]

Never put grease in or in the clutch… clean it , and get things moving but when you add grease to the inner parts the clutch (that gets very hot) will heat up the grease and will sling onto the mating clutch surface and it will always slip…

[@Buses2Bikes]

That is the conventional wisdom however back in the olden days when we didn't have a throw-away society or amazon to buy another clutch for delivery the next day...people had to make metal items last as long as possible. Normally, you would not put any grease inside of a centerfugal clutch but the metal gets thirsty. Just like with a handgun. You have to massage in grease or oil to feed the metal to help keep it from becoming brittle. The clutch in this video, the original one, had been run smoking red hot at some point because it was messed up. You could tap it with a wrench or screw driver and the ring tone was gone. There was no saving it. We put a new clutch on, massaged in the grease making sure not to use excess and to keep it off the rubbing surface between the clutch and the bell's ring...and she was good to go. Right up to the night some thieving dirtbag stole Speedy.

[@sekovittol3124]

I think these just vibrate at certain RPM's anyway. Get a bigger jet, aftermarket filter and exhaust, ...short of gov. delete and billet flywheel, it's a quick easy mod. And since you'll be on mostly flat urban areas, get a smaller tooth rear sprocket. I need torque more than speed myself, it's hilly around here with lots of trails. My BT200x is modded almost fully, all the above plus torque con., but then I made a mini-bike with rear suspension, and I left the governor in, and kept original flywheel, but put in aftermarket air filter, jet about 1-1.4mm size carb. jet, welded up an exhaust pipe with standard Briggs and Stratton style bullet muffler. Slower than the Coleman, but it's fast enough. (The Coleman is fast!)

[@Buses2Bikes]

Sounds like you got the potential for a ripper! Definitely with the torque converter. I'm adding one to this bike along with the header/muffler and new carb. That's about all the investment I want to put in to the stock motor.

[@matthewvangundy7968]

Mine is having issues with the chain on everything spins fine with chain off once chain is on the clutch and the other gear behind the clutch it just grinds n bogs down and dies

[@Buses2Bikes]

There's about 5 or 6 things you can check: 1 - You might need a new centrifugal clutch. They are cheap on amazon. A 10 tooth clutch for a #420 chain is only about $25. But also try taking it off the engine and just give the thing a look over. It should spin freely. A couple of drips of oil on the bearing....visually inspect it to see if the clutches were moving or if there is rust/dirt/debri built up in there. Make sure none of the teeth are damaged or missing. 2 - You may also want to look at the chain itself and make sure it's not dry as a bone or stretched or mis-aligned. 3 - You can also check the oil level of the engine. It might be low or need changing. 4 - You may also check the rear tire's bearing. It might be dry or damaged. 5 - The Jackshaft bearing might need some attention. 6 - Lastly.....inspect the chain tensioner and make sure it's working properly. My best guess just based on your description is the clutch needs service or changing or the jackshaft bearing needs service or changing.

[@oldcult]

Cool¡¡¡¡👍

[@daveg5420]

I have 3 ct200s and a bt200x. Bt200x shakes horribly at 17mph. The other 3 run faster and smoother.

[@Buses2Bikes]

Personally, I think the stock 196 Hisun is too small for this heavier framed bike. It struggles too much especially when it's governed. I'm in the middle of a Predator Ghost retrofit on SPEEDY II. Video to come soon.

[@Deucealive75]

You shouldn't be using all that grease in the clutch. The only thing that needs grease is the caged needle bearing. And even there you have to be careful how much you use because it can migrate out towards the clutch drum. And the only time you need to pull the clutch pack apart is to replace the spring. The problem is that you don't know the history of the engine. In other words, what has it went through before you had it. It may not even be the original engine on the bike. It may not have the compression it used to. It will run but not have full power. Who knows? Straight chain will be very hard on the clutch because of the dramatic gearing change. The low end you had with a 10:1 ratio will be gone with a 5:1 ratio.

[@Buses2Bikes]

The clutch was rusted in spots and hadn't been engaging. So after the clean up, the metal was starving. So that's why I greased it like I did. But then I went back and wiped the excess. Just needed to put "oil" back in to the pores of the metal to avoid it getting brittle. The clutch worked again after that but there ended up being other problems with the motor. However the bike was stolen before I could go any deeper to diagnose the other problems.

[@juicy5836]

Well slow the video down so we can see

[@Buses2Bikes]

Nice....

[@rumbo1818]

The cover goes that way. Ummm, you put greese in the clutch,... think about it,... No.

[@Buses2Bikes]

I "fed" the surface areas that were dry as a bone. The only place on the clutch that had a coating of grease was the shaft bearing. The surfaces that the clutch plates slide on got the metal treated with a massage that was worked in. The clutch did work afterwards but the engine itself had a vicious vibration that nothing seemed to help. And before we could delve any deeper or replace the engine altogether...Speedy was stolen. But the massaging the metal is an old school practice that came over from gunsmithing. Metal gets thirsty and occasionally needs to be treated in order to avoid it getting brittle. Especially in high heat areas like Arizona. As for the cover, yes, for minibike applications the cover goes that way but I usually have to remove the cover and the sticker and rotate them. This was the first time I bought a minibike where it was already done. And since the sticker was missing that tells me the previous owner did it, not Coleman.