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1991 K100RS clutch problem?

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oilhead110
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Last seen: 8 years 1 month ago
Joined: 2009-06-08 10:37
1991 K100RS clutch problem?

The problem: I was riding my 1991 K100RS and when I pulled the clutch lever in to change gears and the clutch stayed disengaged like the clutch lever was still pulled in. There is a bunch of free play in the cable at the lever now. The transmission still has all its gears but the clutch won’t engage, it’s like I still have the clutch lever pulled. The cable is intact and connected at both ends. Almost seems the clutch pushrod is stuck? Any ideas?

Thanks

Dale C

Edited by: oilhead110 on 2009-11-10 11:08
Milo
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Last seen: 1 year 6 months ago
Joined: 1994-01-10 00:00

I'm not sure if this could cause the hang-up but when have your clutch splines last been serviced?

AntonLargiader
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Last seen: Never ago
Joined: 2004-09-30 00:00

On some bikes the throwout bearing piston can stick in the bore. This exactly duplicates the clutch lever being pulled in, so you get the slack cable when you release the lever.

I'd start by looking at the clutch arm on the back/bottom of the transmission. See if it moves without seeming to push on anything on the other side of the rubber boot.

If that's not it (and there's nothing jamming the clutch arm) then I think the trans will have to come off for some investigation.

Anton Largiader

Charlottesville, VA

www.largiader.com

oilhead110
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Last seen: 8 years 1 month ago
Joined: 2009-06-08 10:37

AntonLargiader » wrote:
On some bikes the throwout bearing piston can stick in the bore. This exactly duplicates the clutch lever being pulled in, so you get the slack cable when you release the lever.

I'd start by looking at the clutch arm on the back/bottom of the transmission. See if it moves without seeming to push on anything on the other side of the rubber boot.

If that's not it (and there's nothing jamming the clutch arm) then I think the trans will have to come off for some investigation.

It was something simple, a small rock got kicked up and wedged between the base of the clutch actuator at the rear of the transmission and the top of the exhaust system. Knocked it out with a screw driver and it works fine now.

Thanks for all the replies.

Biggrin

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