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Old 01-02-2020, 05:34 PM
jmaack jmaack is online now
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Default 2018 Coleman ct200u-ex build

Ok SO i met a guy and bought a go-kart and a minibike for 70 bucks. The cart was more than i wanted to fool with so i sold it for 40 bucks.

I decided to build the Mini bike.

So far I have purchased chinklefab TAV2, new bearings, new brake lever, new brake cable, new throttle cable new chain, harbor freight trickle charger, ammo box, battery (battery and ammo box i had laying around). This paired with a predator 212 hemi that I bought on a whim several months ago.

Started piddling with it tonight until I figured out I was sent the wrong bolts for the tq converter.


More to come tomorrow when I raise engine and go to hardware store for some bolts and try to find something to use as a 1 inch spacer to raise engine up.

To be continued. I will post pics tomorrow daylight.

HOping to keep this build under 200 bucks and still have enough MPH to make me grin. My plan is to keep it the tan for now but will be blasting and repainting more than likely black.
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Old 01-03-2020, 05:02 PM
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Well I tried to get some today. just finished it up. It moves going to do bearings tomorrow and rear spacers. It needs new gears. I can lift front up about an inch. Still a 50 tooth rear.
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Old 01-03-2020, 05:04 PM
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I also think I need a different mount. I used washers to get me to 1 inch but I dont like how far the rear adjusters are pulled. Thinking of going with the fabbed one that goes up and forward to take care of slack so adjusters arent so far out. I didnt want to break the chain only to go different later.
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Old 01-03-2020, 08:08 PM
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Nice... good solid bike, I have a Coleman ct200uex and a Coleman bt200x.
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Old 01-04-2020, 01:13 PM
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spacers are on looks like this is a win. Gonna go through all bolts after a few cooldowns. Then gonna ride for a bit. Then pull apart and paint.
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Old 01-04-2020, 03:22 PM
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The tq converter isnt closing up 100% on driver pulley. It lacks maybe a 1/4 inch to the belt riding the top. The governor is still 100 percent on. Would the governor and 50 tooth sprocket cause it to not shift to high gear? Before i put chain on it it would.
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Old 01-06-2020, 10:12 PM
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I used 1 " square tubing to make a riser to move my engine up and forward so I wouldn't have to cut other bike or torque converter.
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Old 01-06-2020, 10:20 PM
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BTW I have a ct200u-ex with the origional hisun engine. I swapped a new clone crank I had and now have " shaft. Added a torque converter, knockoff mikuni, no governor, advanced timing, stock exhaust off a tillotson 212 (flows better and is quiet). It gets my fat butt cruising at 40mph. I have taken a few trips and looked at my GPS app and saw that I hit 45mph. The 30 series goes into overdrive and I am not even near the top RPM I can pull. I am happy with the speed and power so I probably won't mess with it.
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Old 01-07-2020, 12:05 AM
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Quote:
Originally Posted by txluke View Post
I used 1 " square tubing to make a riser to move my engine up and forward so I wouldn't have to cut other bike or torque converter.
I was going to try and not cut. But I got bored cut it out and am still going to get the omb mount whenever I get time to sit down and plan out painting. I guess I can count it as weight saving since I cut it out. ha.

---------- Post added at 12:05 AM ---------- Previous post was at 12:04 AM ----------

Quote:
Originally Posted by txluke View Post
BTW I have a ct200u-ex with the origional hisun engine. I swapped a new clone crank I had and now have " shaft. Added a torque converter, knockoff mikuni, no governor, advanced timing, stock exhaust off a tillotson 212 (flows better and is quiet). It gets my fat butt cruising at 40mph. I have taken a few trips and looked at my GPS app and saw that I hit 45mph. The 30 series goes into overdrive and I am not even near the top RPM I can pull. I am happy with the speed and power so I probably won't mess with it.

good info. what sprockets are you running?
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Old 01-10-2020, 10:31 AM
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I am running stock sprocket.
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Old 01-11-2020, 07:17 PM
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Well I bought a light today. Bent up a mount during our storm today and have to get some bolts to attach. Tomorrow I am going to get a new battery and a switch. As of now I am not using a relay I will use a switch that can handle the amps and a fuse by battery. More to come hopefully
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Old 01-12-2020, 03:11 PM
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Ran in to a hurdle. Went to ride made it 1/4 mile from my house and popped the master link from my amazon chain. Noone near me has any so now inhave to order.
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Old 01-13-2020, 12:00 AM
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Quote:
Originally Posted by jmaack View Post
Ran in to a hurdle. Went to ride made it 1/4 mile from my house and popped the master link from my amazon chain. Noone near me has any so now inhave to order.
When you get the next one, make sure that the closed part of the master link is oriented in the direction of chain travel
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Old 01-13-2020, 12:32 AM
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Quote:
Originally Posted by landuse View Post
When you get the next one, make sure that the closed part of the master link is oriented in the direction of chain travel

I want to say it was when I installed it. But I had the same thought to donit that way when new one gets here.
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Old 01-25-2020, 05:49 PM
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Small update. Got me a tool bag. (freebie it is a magazine holder for a gun tote I forgot I had.)
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Old 01-25-2020, 05:55 PM
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I need to order some performance parts but it is enough right now to make me smile. 45 MPH stock predator. My wife said i can order some performance parts SO i might go to a stage 2 soon.
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Old 01-26-2020, 12:54 PM
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ok so on to the battery box I am wanting to mount it in this location instead of an ammo box behind seat. shown in first pic.

I will use 2 mounts and rest other side on frame. one will be a single engine mount one from old jackshaft mount the other you can see on frame. shown in second pic.

here is what I am hoping for. third pic. any opinions or any better ideas?
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Old 01-26-2020, 02:12 PM
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That ought to be just fine, as long as you don't pinch that brake cable under it. And I'd say it's coming along nicely. I can tell you from experience that that 50t sprocket is a bit small. My baja will pass 50mph on road at about 3/4 throttle, but I have had it at around 58 ish mph before. But for off road it's a bit high geared. I'm going to add a segment to my current chain temporarily, and install a 72t on mine. I'll let you know how it goes. But a 60t might be better for a governed engine.

PS: I do a lot of trail riding in some pretty tight, slow areas.
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Old 01-26-2020, 02:53 PM
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Quote:
Originally Posted by J.S.@SMS View Post
That ought to be just fine, as long as you don't pinch that brake cable under it. And I'd say it's coming along nicely. I can tell you from experience that that 50t sprocket is a bit small. My baja will pass 50mph on road at about 3/4 throttle, but I have had it at around 58 ish mph before. But for off road it's a bit high geared. I'm going to add a segment to my current chain temporarily, and install a 72t on mine. I'll let you know how it goes. But a 60t might be better for a governed engine.

PS: I do a lot of trail riding in some pretty tight, slow areas.
I will be rerouting all my cables after paint. I can only hit 45 so i think with my weight 185ish and a governor thats all its got. I might cut a couple slits in box and use a couple of small hose clamps to secure to tubing. I am up in the air on removing governor. Part of me wants to but we will see.

I can definitely tell going uphills even with the torque converter that it is still too high geared as for now i am sticking withit until it gets spring time when its actually nive to go ride and will actually go up hills. I was planning on a 72 tooth.

---------- Post added at 02:53 PM ---------- Previous post was at 02:41 PM ----------

Stage 1 from GPS ordered. Let the fun begin.
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Old 01-29-2020, 12:35 PM
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stage 1 installed. Gripes are. the choke lever bracket I knew it was janky but wow could use some tweaking but it works and is minimal. choke lever on carb hits adapter again this can be tweaked.

Pros this thing is loud gotta get the muffler wasn't expecting that much. overall 100% happy. thanks gopowersports.
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