Coleman Mini bike sprocket change
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- Опубліковано 5 лип 2024
- Today we're gonna change the front sprocket on my Coleman Ct-200u-ex, which we all know on this channel as Trail Force One. We are going from a 10 tooth to a 9 tooth, which should give us a little more bottom end torque at the price of some top speed. I am not concerned with going fast on this as much as getting me and my gear up the steep hills.
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Thanks for the information 👍🙂
Thanks for watching Teshuvah. Glad to help. More videos like it on the way.
AlWays good Info 👍 Thxs
Glad you liked, UNTRUTHS. Thanks for watching.
Seems to definitely go better up the hill👍,😊.
Thanks for watching Jason. Yes, it creeps pretty good now.
Nice. You can also try the 8 tooth. Looking forward to more videos on trail force one in the future. Thanks Mike
Glad you enjoyed L.A.M. Wow, an 8 tooth?? I had no idea that those were out there. I thought that the chain was on a pretty tight turn with the 9t. Thanks for watching!
@@themostlymikeshow2582 I run 8/50 on one of my bikes. The gearing works well but it's quite a turnaround for a 420 chain and the 8 tooth sprocket doesn't look very robust.
9/60 is my favorite with slightly better low end than 8/50 and higher top speed than 8/50.
@@themostlymikeshow2582 I wonder if you could rig an idler type pulley, just in front of the 8/9T to sort of widen the turn around of the chain? Or would this be too risky having less chain contact with the gear/teeth, as in busting a chain or gear teeth?
Cool!
Thanks for watching Anthony!
Can also move the converter spring for hilly terrain
Yes Dillon, I am going to be looking into that for a future video. Thanks for watching and the tip.
Thank you Mike for your time. I also have the same Bike, went to a 9 tooth front sprocket . The change is top speed was 26 MPH now 19 MPH still plenty fast for my purposes. I use this as a life boat escape from the off-roading, I do alone in the Mojave desert . Put a hitch on the side by side and carry it with me where ever I go. One suggestion a rear tire change is helpful as to traction, so as to get full benefit from Gear change. This turned mine into a hill and sand wash Monster.
Thanks for watching and sharing your story. I always like to hear about the uses that others have for these economic and fun machines. I'm due to make some more videos on some upgrades. I have lots of stuff to put on, and you reminded me about the rear tire. I think it would definitely go better with a more aggressive tread.
Love your videos! Great edits and entertaining. Thanks for posting. I have this same bike for trails around the house and road trips across the American SW. Knowing I have my bike in the back gives me the piece of mind to take less GPS friendly route. If I breakdown and need to get to the next farm house or over the next hill for cell signal, my Steel Pony will get my there. Being over the 200 lbs mark, I was curious about heavy duty sprockets for those hill climbs. Do you know how much weight you can pull now? New Subscriber here!
Thanks for watching, subscribing, and the kind words. I'm not sure how much weight it can pull, but the smaller front sprocket and larger rear sprocket had really given it a lot more torque. The torque converter also helps out on the bottom end. There's definitely not so much top speed, and when you let off the throttle, it has an engine breaking effect because of the low gearing along with some chain noise, which is to be expected. I have the ski mounted to the front of it now, and hoping to get it out when it starts snowing and make another video on that.
Installing my new sprocket on your recommendation. Torque converter is next!
@Odin31b Awesome! Let me know how you like it. There's definitely a trade off on speed and torque, but I am more about having the power to go over things than having high speeds.
What size of chain in torque converter you used ?
Hi Solojistang. The chain that goes to the rear wheel is number 420. The torque converter itself has a belt inside.
I just got my 9 tooth in the mail. I ordered the same one that you did. It doesn't slide on! The keyway fits, but once it's past the threads on the jack shaft it stops. Not sure how I'm going to make this one work.
What's actually keeping it from going on?
@The Mostly Mike sHOW the shaft itself. It steps up in diameter. I measured it. It's about 20 thousandths bigger that the ID of the new sprocket. Sure it could be sanded down to make the sprocket fit, but then if I need to go back to the original one, they'll be slop in it. I guess I just got a bad one? Kind of a bummer. I'm gonna order one without the built in key and return this one.
@@TonyMontana-lh5bp wow, I never heard of that before. I definitely prefer the type with the broached keyway. I hope that it works out for you.
@The Mostly Mike sHOW yea me too! I'm having some trouble finding it on Amazon though?
I ended up die grinding/filing the one that didn't fit. I got it on there now. Hopefully she stays together!! FYI the ID of the sprocket is just over 5/8" which I believe is what it should be. The jackshaft however was bigger; 20-30 thousandths. So perhaps the sprocket was fine and the shaft was oversized?
Get a 669 belt, seems like you have a 725.. that helped me with the same belt situation
Thanks for watching and the advice Dustin. I'll have to look into that.
I run my chain a little tighter. Mine keeps hitting the drum at high speed
Thanks for watching. I agree. My chain is a bit loose in this video.
What size chain?
Thanks for watching Cutter. It's a #420 chain.
They would produce that sprocket hole by broaching. Or it was cast that way.
Thanks for watching. I have been around machining stuff for long time, but I have never seen a broach that would make a protruding key on an inside diameter. Not saying that it's not out there, but it really doesn't seem practical. Being that I believe that it was cast into it, I questioned how long it would hold up, but it's been quite a while and I haven't had any issues. Because of stuff like this, I don't generally take it in places that I would have to push for hours to get it Out of the Woods.
5:23 If the belt goes on THAT easy, you know it’s loose
Yeah, I agree. I've heard some say that it's okay, but I agree with you. I'm probably losing snap, power or hills, and top speed. I'm going to mess with the springs at some point and make a video on it.
burrs could cause it to seize to the shaft
I agree!
Get rid of that master chain link and go with a chain breaker, no more chain fail using a chain breaker
Thanks for watching and the tip Billy. That seems like it would be complicated in the field if you needed to work on it for whatever reason isn't it? I do carry a spare master link or two.
@themostlymikeshow2582 they are easy to use, not that big of a tool I would practice with it a cuppel of times, though
@Billy-hw8mv I use chain breakers all the time. What do you put it back together with though?
@themostlymikeshow2582 the pins you pushed out of course
Always remember DA, ders a right way and a wrong
Way to doing things.
Very true Jimmy. It's a tradeoff. Thanks for watching and commenting!
If you want it to climb get the torque unit and it will climb better
Thanks for watching! If you mean the torque converter, it already had one on when I shot this video. I have another video showing the installation.
You should remove the governor.
Thanks for watching fish. Yes, I have been wanting to remove the governor, just haven't got to it, and actually never removed one. I'll likely video my experience figuring it out when I do.
@@themostlymikeshow2582 It's very easy.
@@themostlymikeshow2582 Just open up the engine and you can use a hammer and chisel to remove it.
That's not a good idea on a Coleman with a torque converter and a stock engine. Even with 9/60 gearing it's going to top out sooner than ungoverned RPM making governor removal a waste of time and effort. To get higher than 3600 RPM it will need the throttle screw backed out and the throttle spring repositioned on the governor arm. You can then top the bike out on the road without the governor backing off the throttle.
With 9/60 gearing my 196 topped out right at 5K RPM. My 224 topped out at 5590 RPM. Both have the governor and stock linkage. Both have the throttle spring repositioned from stock and fully adjustable throttle screws. Pulling the governor on either engine would result in zero gains.
The only way I would pull the governor is if I got a Juggernaut or Tork zilla driver which is not going to happen. Don't need it.
@@Deucealive75 Well, mine has a clutch and a racing carb.
Get a stage 1kit
Thanks for watching RC. Maybe someday.
@@themostlymikeshow2582 is your governor removed?
If you wheelie that thing high enough you’ll wind up with hemorrhoids and that’s a fact😂
Thanks for watching Grumpy. I'll have to be careful of that! 😁
Your belt is way to lose .
You shouldn't be able to put it on with both pulling's installed.
That's what I was thinking too Larry. Those are the belts that came with it too. I'm wondering if there's an issue with the adjustment of the driver or driven pulleys. Thanks for watching.
Hemorrhoid Hill… I’m going to assume thats a lumpy ride.
Oh yes... Very bumpy! 😂Thanks for watching!
Belt spray IT WORKS WONDERS. ITS LIKE TACK SPRAY BETTER AND FASTER CONTACT LESS SLIPPINNN
I will have to try that! Thanks for watching and the helpful tip!
@@themostlymikeshow2582 you can buy smaller belts but they won't last as long.
Thanks Patrick!
Need to add a 60-70 tooth rear sprocket. More torque and speed for trail riding.
Thanks for watching Daytona. I have a 60 tooth rear sprocket and a 9 tooth front sprocket, along with the torque converter. All of those improved torque, but at the cost of top speed.