You should have just removed the jackshaft plate altogether. You could have sold it for $40 towards a torque converter. Your biggest obstacle is tire size and weight vs centrifugal clutch. If you add the biggest rear sprocket you can get, you will move but the engagement is too extreme for the clutch shoes. Your going to get a lot of excessive wear starting out and every time you let off the throttle you completely drop the load and it will then slip like son of a gun till it grips again. Your going to see bluing on the outside edges of your clutch shoes and will be etching the surface of the housing in a short time. It's a good theory, I tried it on a ct200u with the same results.
I'll say this. This is my girlfriends bike and she is 64 years old and she only wants to go 15mph. The factory clutch is junk I replaced with a max torque clutch from gopowersports.com. We are not out there to do crazy trail riding just a couple old folks enjoying out time together.
@@carnivorecave www.ebay.com/itm/30-Series-Bolt-on-Torque-converter-kit/184472501162?hash=item2af36afbaa%3Ag%3AtiwAAOSw4Plfd8PV&fbclid=IwAR0SMwCINzZfeRN2bh4HG4BB8nDVfgS7Sv8F229x-meT6JIhcGS3RBkgQ4I Got mine from this supplier and it was packaged with care. easy to install and will climb hills with ease and no "king king king king" chattering clutch noise lol
make that piece into a chain guide and install a chain tensioner with a roller wheel and your chain is too tight, you can mount a thick peice of plastic there for the chain to slide on.
You did this, but why? In my 50+ years of mini bike fiddling, longer chains create more problems. Centrifugal weight causes chains to fly off more easily. Plus the jack shaft lowered your gear ratio. Eliminating it caused a loss of torque. Then you destroyed the jack shaft in the process. Removing 4 bolts would have saved your jack shaft. The jack shaft is worth useing, even if there is more maint.
I just got a BT200X used from the Coleman dealership and it's acting all kinds of weird. I get engine vibrations and whining noises and total lack of power. I tore apart the centrifugal clutch and cleaned and sanded and greased it then put it back together. It was completely bone dry in there so I doubt it was operating correctly. I clipped the throttle stop tab and zip tied the governor spring. That helped but I still have a bit of vibration at a certain RPM and the bike still makes a whining noise like there's an engine brake on it. I was thinking of deleting the jack shaft and just running it straight chain. It's been 2 years since you've done this mod. Has it improved the riding or are you blowing through clutches? I am going to be checking the flywheel nut next to see if maybe it's loose and that could be what's causing the vibrations. I may just say TO HELL WITH IT and put a TC on it instead of straight chaining it. I just see these guys on these doodlebugs out on the streets and highways with straight chains doing 60 and 70 mph like maniacs and I'm like..." How are these bikes not blowing up?" And than follow that with... "How can I make my bike go that fast?!"
i just put a new motor on my coleman 200 with 60 tooth in rear but i cannot get chain to run straight,if i hit the gas up a hill the chain pops off help me!
I did mine everything is stock but I bypassed the govenor zip tied the spring. Before I straight chained it was at 30.8 top speed. Now it’s at 38. Gunna swap it to a 60 tooth soon
@@Partnerthedog i know it’s a old comment. But for anybody else who sees who wants to keep the jackshaft but wants more speed, swap the rear wheel sprocket to a 38 tooth one. 40 mph with governor bypassed and still ok acceleration
One reason is the gearing is no longer ideal. Another reason is how you ride. If you are on and off the clutch they will heat up even with the stock Coleman gearing. Even worse without the jackshaft. And if the engine could talk it would be begging you to put the jackshaft back on or to get a torque converter. Life is much easier for the engine and clutch with 10/1 gearing than it is with 5/1 gearing.
@@youtubecertified4643 what do you mean, I didnt sit there and count them. You test fit it, and see where you need to break it. Whats your question and what are you trying to accomplish?
You combine the 2 separate chains using one of the existing masterlinks. Then you mock it up and break it making sure its the right place and you leave yourself the most room for adjusting tightness, make it as long as you can because if you go too short you can't go back. I ended up putting my jackshaft back on and installing a 60t rear sprocket because I use mine for crazy offroading
The problem is that this gearing sucks ass. If you do not want to put the jackshaft back on you have 3 options. 1. Change the rear sprocket. A 60 tooth would be better but still may not be enough. Or find a 70+ tooth sprocket. A 70+ tooth would be a better option than the 60. 2. Install a torque converter. This will give you good low end and decent top speed. A torque converter changes a pretty fun bike into a very fun bike. 3. Build a very powerful engine and get a very expensive clutch to go with it.
@@Deucealive75 i ordered a 60 rear instead of the stock 50 and decided to put the jackshaft back on, it was already really fun with a 50, I have valve spring upgrade and intake and exhaust and racing spark plug upgraded lines and fuel filter and ebc brake pads I took the governor gear out correctly took the engine apart and all.
@@Partnerthedog So you are back to the jackshaft and 50 tooth? So you removed the governor and are putting heavier valve springs in it? If ran this way you may end up spinning the engine faster than it was designed to handle. The connecting rod should wear out faster and possibly break while riding. When ever the governor is removed on these engines a billet rod and flywheel are needed for safer high RPM operation.
@@Deucealive75 i made it straight chain 12front 50 rear and it wasn't fun to ride anymore. So I ordered a 60t rear today and a longer chain and im going to put the jackshaft back on. Like I said I have alot of mods so it was already fun with a 50 rear and the jackshaft on so the 60 rear should make it accelerate faster and so I won't need high rpm as much. I'm not worried about blowing the engine I use mine on rough off road terrain so im lucky when I can go full throttle for 4 seconds before letting off. I just want acceleration not top speed for offroad adventures
That's not a good ratio for a tall tire mini bike. Should get nice top speed but will take forever to get there. Torque converters work great on the Colemans. The installation is interesting but once complete they are worth it.
@@Partnerthedog If the chain clearance is there a 60 tooth sprocket would help. It wouldn't be a dramatic change but would help. And if you decide to get a torque converter the 60 tooth works well with that. In my opinion every Coleman 200 with a torque converter needs a 60 tooth sprocket.
@@Deucealive75 yeah I put my jack shaft back on and got a 60t sprocket and it hauls a** now for offroad use. I have intake and exhaust, 18# valve springs, autolite racing plug, and governor removed (plus the rk chain and 60T sprocket) only thing I want to do now is put on a slide carburetor, 55$ kit on amazon. Plus jets
@@Partnerthedog Excellent! I bet that gearing works great off road. The only concern now would be wearing out or breaking the stock connecting rod. May be ok for a while if not revved too high. Change the oil very often when running higher than governed RPM. With a billet rod and flywheel you would be all set.
@@Deucealive75 yeah but at that point it'll cost alot and I'm only keeping it for the winter while I'm camping in the desert theirs loose sand, dry river beds and tons of trails and its warm even in January. I travel in my rv with it. Im getting a dual sport next, its alot more practical.
You should have just removed the jackshaft plate altogether. You could have sold it for $40 towards a torque converter. Your biggest obstacle is tire size and weight vs centrifugal clutch. If you add the biggest rear sprocket you can get, you will move but the engagement is too extreme for the clutch shoes. Your going to get a lot of excessive wear starting out and every time you let off the throttle you completely drop the load and it will then slip like son of a gun till it grips again. Your going to see bluing on the outside edges of your clutch shoes and will be etching the surface of the housing in a short time. It's a good theory, I tried it on a ct200u with the same results.
I'll say this. This is my girlfriends bike and she is 64 years old and she only wants to go 15mph. The factory clutch is junk I replaced with a max torque clutch from gopowersports.com. We are not out there to do crazy trail riding just a couple old folks enjoying out time together.
@@carnivorecave thats awesome in so many ways!
@@carnivorecave www.ebay.com/itm/30-Series-Bolt-on-Torque-converter-kit/184472501162?hash=item2af36afbaa%3Ag%3AtiwAAOSw4Plfd8PV&fbclid=IwAR0SMwCINzZfeRN2bh4HG4BB8nDVfgS7Sv8F229x-meT6JIhcGS3RBkgQ4I Got mine from this supplier and it was packaged with care. easy to install and will climb hills with ease and no "king king king king" chattering clutch noise lol
Just get a bigger (like 60 tooth) rear sprocket and you'll get more acceleration and still have way better than stock top speed
Bigger sprocket more torque. Smaller sprocket higher top end.
make that piece into a chain guide and install a chain tensioner with a roller wheel and your chain is too tight, you can mount a thick peice of plastic there for the chain to slide on.
You did this, but why? In my 50+ years of mini bike fiddling, longer chains create more problems. Centrifugal weight causes chains to fly off more easily. Plus the jack shaft lowered your gear ratio. Eliminating it caused a loss of torque.
Then you destroyed the jack shaft in the process. Removing 4 bolts would have saved your jack shaft.
The jack shaft is worth useing, even if there is more maint.
@Danang Alta what belts are you using? Are your pulleys aligned properly? I got 30hrs out of a comet belt before I smoked it.
what size is the chain, i had straight chained and it had snapped. need to get a new one but don’t know which one
I just got a BT200X used from the Coleman dealership and it's acting all kinds of weird. I get engine vibrations and whining noises and total lack of power. I tore apart the centrifugal clutch and cleaned and sanded and greased it then put it back together. It was completely bone dry in there so I doubt it was operating correctly.
I clipped the throttle stop tab and zip tied the governor spring. That helped but I still have a bit of vibration at a certain RPM and the bike still makes a whining noise like there's an engine brake on it. I was thinking of deleting the jack shaft and just running it straight chain. It's been 2 years since you've done this mod. Has it improved the riding or are you blowing through clutches?
I am going to be checking the flywheel nut next to see if maybe it's loose and that could be what's causing the vibrations. I may just say TO HELL WITH IT and put a TC on it instead of straight chaining it. I just see these guys on these doodlebugs out on the streets and highways with straight chains doing 60 and 70 mph like maniacs and I'm like..." How are these bikes not blowing up?" And than follow that with... "How can I make my bike go that fast?!"
i just put a new motor on my coleman 200 with 60 tooth in rear but i cannot get chain to run straight,if i hit the gas up a hill the chain pops off help me!
Ya them jack shafts are junk me an 2 of my friends have those chain keeps getting lose an bearings keep going out after a short ride
Did you gain any speed without the jackshaft?
I did mine everything is stock but I bypassed the govenor zip tied the spring. Before I straight chained it was at 30.8 top speed. Now it’s at 38. Gunna swap it to a 60 tooth soon
What you going to do for the chain tensioner? Can’t run it like that
The engine can slide forwards and back and the rear tire can also
Minibikes had always been straight chained back then.
What speeds are you getting with this setup?
I did this and now it sucks it barely accelerates now, more top speed, almost no acceleration. I wish I kept the jack shaft now
I have a 60 tooth no problems
@@roeb3872 does it still take off and have high end speed if so how fast is your mini bike right now ?
@@julianflores2511 I take off is descent, top speed 51mph
@@Partnerthedog i know it’s a old comment. But for anybody else who sees who wants to keep the jackshaft but wants more speed, swap the rear wheel sprocket to a 38 tooth one. 40 mph with governor bypassed and still ok acceleration
Great video nice information
THANKS
Why are you even keeping the bracket on there? Just take it off, you don't need it now that you've deleted the Jack shaft.
get you a torque converter mine went from 20 mph to 40 mph
Link to exhaust pipe please?
Can any possible tell me why clutch heats up with a one chain setup
One reason is the gearing is no longer ideal. Another reason is how you ride. If you are on and off the clutch they will heat up even with the stock Coleman gearing. Even worse without the jackshaft. And if the engine could talk it would be begging you to put the jackshaft back on or to get a torque converter. Life is much easier for the engine and clutch with 10/1 gearing than it is with 5/1 gearing.
your clutch heats up when it is not fully engaged. find out why it is not engaging.
How long of a chain should I buy
if you wanna get the right size the shorter one is a 42 link #420 chain and the longer rear chain is a 90 link #420
How long of a chain do i need
Listen to the video. He combined both chains together
You just supposed to move the tire back and it tightens up the chain it explains how to do this in the manual
What size chain and were do you get the chain from
I think its a 420 chain
He said he combined the front and rear chain into one big chain
@@Partnerthedog yes but how many links
@@youtubecertified4643 what do you mean, I didnt sit there and count them. You test fit it, and see where you need to break it. Whats your question and what are you trying to accomplish?
You combine the 2 separate chains using one of the existing masterlinks. Then you mock it up and break it making sure its the right place and you leave yourself the most room for adjusting tightness, make it as long as you can because if you go too short you can't go back. I ended up putting my jackshaft back on and installing a 60t rear sprocket because I use mine for crazy offroading
No one answered my question and I did this to my bike now it sucks ass won't accelerate its geared so wrong now.
The problem is that this gearing sucks ass. If you do not want to put the jackshaft back on you have 3 options.
1. Change the rear sprocket. A 60 tooth would be better but still may not be enough. Or find a 70+ tooth sprocket. A 70+ tooth would be a better option than the 60.
2. Install a torque converter. This will give you good low end and decent top speed. A torque converter changes a pretty fun bike into a very fun bike.
3. Build a very powerful engine and get a very expensive clutch to go with it.
@@Deucealive75 i ordered a 60 rear instead of the stock 50 and decided to put the jackshaft back on, it was already really fun with a 50, I have valve spring upgrade and intake and exhaust and racing spark plug upgraded lines and fuel filter and ebc brake pads I took the governor gear out correctly took the engine apart and all.
@@Partnerthedog So you are back to the jackshaft and 50 tooth?
So you removed the governor and are putting heavier valve springs in it? If ran this way you may end up spinning the engine faster than it was designed to handle. The connecting rod should wear out faster and possibly break while riding. When ever the governor is removed on these engines a billet rod and flywheel are needed for safer high RPM operation.
@@Deucealive75 i made it straight chain 12front 50 rear and it wasn't fun to ride anymore. So I ordered a 60t rear today and a longer chain and im going to put the jackshaft back on. Like I said I have alot of mods so it was already fun with a 50 rear and the jackshaft on so the 60 rear should make it accelerate faster and so I won't need high rpm as much. I'm not worried about blowing the engine I use mine on rough off road terrain so im lucky when I can go full throttle for 4 seconds before letting off. I just want acceleration not top speed for offroad adventures
@@Partnerthedog OK cool. Hope it works out great for you.
Your going to burn a clutch month
That's not a good ratio for a tall tire mini bike. Should get nice top speed but will take forever to get there.
Torque converters work great on the Colemans. The installation is interesting but once complete they are worth it.
I did this and you're correct. It no longer accelerates and the top speed is better but it was better before.
@@Partnerthedog If the chain clearance is there a 60 tooth sprocket would help. It wouldn't be a dramatic change but would help. And if you decide to get a torque converter the 60 tooth works well with that. In my opinion every Coleman 200 with a torque converter needs a 60 tooth sprocket.
@@Deucealive75 yeah I put my jack shaft back on and got a 60t sprocket and it hauls a** now for offroad use. I have intake and exhaust, 18# valve springs, autolite racing plug, and governor removed (plus the rk chain and 60T sprocket) only thing I want to do now is put on a slide carburetor, 55$ kit on amazon. Plus jets
@@Partnerthedog Excellent! I bet that gearing works great off road. The only concern now would be wearing out or breaking the stock connecting rod. May be ok for a while if not revved too high. Change the oil very often when running higher than governed RPM.
With a billet rod and flywheel you would be all set.
@@Deucealive75 yeah but at that point it'll cost alot and I'm only keeping it for the winter while I'm camping in the desert theirs loose sand, dry river beds and tons of trails and its warm even in January. I travel in my rv with it. Im getting a dual sport next, its alot more practical.
WHAT HEADER DID YOU USE
I made the exhaust header an the muffler I got from Ace Hardware for 10$
Getting dizzy hold camera still
@@carnivorecave what size is the whole chain plz let me know, I want to do the same thing
I JUST GOT ONE
Not a bad set up i still reach 50
Makes the gear ratio to high
get a torque converter way more torque
Did you drill new motor mount holes?
No you just flip the clutch around and it lines up perfectly