First Gear engagement - ATC 110

[DogMan]

I apologize if this is obvious, but I have looked through the search function to the point of exhaustion, and also searched the owners manual and service manuals online. I just finished a frame-up rebuild of a 1984 Honda ATC110, but just can't figure out this issue.

So the question: in idle, when I engage first gear from neutral, the trike begins moving forward without throttle. Is this normal? In contrast, my kid's dirt bike with auto-clutch (Yamaha PW-80) just idles in first gear, and will only roll forward with throttle applied. In other words, the bike will not stop moving in gear, only in neutral.

If this is NOT normal, what are potential causes? I have adjusted the clutch twice per the service manual instructions. Could my idle speed be too high? Otherwise, the trike runs great. Thanks for any help for this newbie...


(BTW, below is a gratuitous pic of the almost completed project...)

[3wheelrider]

this symptom of creeping is usually the centrifical clutches (sticking).thats if the bike is running normal at idle speed. they must be replaced.no adjusting. also,-if the clutches are starting to slip as you gass it -then you migth as well replace the manual cluthes while your at it too. thats a nice 110! i'm surprized it would have this problem. looks well kept/low usage.

[riverrat]

Nice job on the 110! Make sure the idle isn't too high first.

[MonroeMike]

Welcome to the board, nice looking bike.

[jb2wheels]

That looks great! Did you find a zero offset aluminum fron rim?

[DogMan]

this symptom of creeping is usually the centrifical clutches (sticking).thats if the bike is running normal at idle speed. they must be replaced.no adjusting. also,-if the clutches are starting to slip as you gass it -then you migth as well replace the manual cluthes while your at it too. thats a nice 110! i'm surprized it would have this problem. looks well kept/low usage.

Trust me, it didn't look this good before I stripped it down to the frame and rebuilt from there. But I didn't tear into the clutches, since it seemed to shift fine and not slip. So no way to "un-stick" the centrifugals?

[DogMan]

Nice job on the 110! Make sure the idle isn't too high first.

I'll adjust down the idle and see if that helps...

That looks great! Did you find a zero offset aluminum fron rim?

No, didn't find a zero offset front rim. That is actually the front fork assembly and rim off a 200m; I decided to go for the suspension upgrade while I had the trike apart. The rears are Douglas aluminum rims.

[riverrat]

What size rims are in the rear? And what size rim do you need for the front? I might be able to help.

[fabiodriven]

I'm pretty sure that particular model doesn't have the separate centrifugal clutch. I believe it's just one unit. Somebody correct me if I'm wrong, but I don't remember seeing a separate centrifugal when I did the clutch in my 110. My guess would be either you assembled something wrong or it may be time for a new clutch.

Trailpros

[hoser]

Has the ATC been setting for a long time, if it has I would ride it for a tank of gas I would also go through the service manual and perform the check and adjustment checks if it still is a problem your going to have to go inside and CSI the clutches.

[riverrat]

Just the springs could be worn out too.

[79fordblake]

Just got done putting new centripical clutch shoes on my 81 185s, along with a better used drum, new clutch fibers from EBC and new heavy duty springs from Versah. I was so use to the clutch sliping that I didn't realize how bad it was. Now that I got it back together today and rode it, its like a brand new trike, doesn't feel like its the same one at all.

I would replace all the clutch parts on that 110, especially since it looks so good.

[DogMan]

I would replace all the clutch parts on that 110, especially since it looks so good.

Crap, I may have to do that. The checked the idle and it is fine. Guess I may need to crack open the clutch.

[Dirtcrasher]

I'm pretty sure that particular model doesn't have the separate centrifugal clutch. I believe it's just one unit. Somebody correct me if I'm wrong, but I don't remember seeing a separate centrifugal when I did the clutch in my 100. My guess would be either you assembled something wrong or it may be time for a new clutch.

Trailpros

Who makes a 100?? Dam Johnny!!!!!!!!!!

[Vealmonkey]

I'm not quite understanding what you typed here. Are you saying the trike won't move when put into first gear? Or are you saying the trike creeps forward in first gear at an idle? If the trike is in gear, there is no reason that it shouldn't move forward in gear. If it was a car, then it would stall if you put it in gear. These trikes aren't an automatic like a car. Just that your foot operates your clutch instead of your hand and a lever and cable. Now if the trike isn't moving that could be lots of problems. A dragging rear brake, bad wheel bearings and a crappy rear chain will help keep your trike from moving. You could be motoring around on the trikes original clutch fibers and steel plates which may be well worn. Clutch springs wear out and lose strength. If you changed to a modern synthetic oil, this often kills the clutch fibers as the oil is really too slippery for the old clutch fibers. Most trike clutch fibers aren't made to work with modern synthetic oils. I've seen it happen too many times. So it could be a number or things either way, but please make your original question a little easier to understand.