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Discussion Starter #1
I bought a 95 RM125... I didn't ride it when i went to see it just started it so see if it runs ok. Now im home try to take it for a short alley ride and the clutch doesn't work. They guy that i bought it from had the receipt from a shop for Barnett clutch plates.. what could be the problem??????
 
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Re: Rm clutch problem (Giannis)

When you say doesn't work....

Do you mean it won't engage, or it won't disengage?

Won't disengage: Plates are stuck to one another... this can happen if the oil is contaminated with water or coolant, the plates expand and stick. You can sometimes break them free by force, push the bike back and forth real hard with it in gear... once broken free, change the oil, make sure it doesn't look like Mississippi mud, and you might be fine.

Won't engage: Clutch cable needs to be adjusted, plates are slipping, clutch is assembled incorrectly or gearbox is broken, missing dogs, shift fork misaligned, drive gear is broken or misaligned, any of a bunch of things...
 
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Re: Rm clutch problem (banda)

Some pics.... (does this think that i point with arrow suppose to be lose?????

btw Won't disengage....








Modified by Giannis at 3:17 PM 2/24/2005
 
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Re: Rm clutch problem (Giannis)

I'd bet on something backwards. Look for a big spring/washer at the back of the basket underneath all the plates. It looks like it goes in either way, but it only goes in one way.
 
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Re: Rm clutch problem (Just Riding Along)

That's a good point... with a receipt for new clutch plates, it's entirely possible that the clutch stack is assembled out of order. The owner's manual or shop manual should have explicit instructions for the order and orientation of all the clutch parts.

When you pull in the lever, does the clutch "expand" as it should? Those five springs keep all the plates mashed together, pulling on the clutch lever should relax the pressure between the plates. Does it do this?
 
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Re: Rm clutch problem (banda)

i cant pull the clutch the bracket that pulls the plates is on the cover and i have to close the cover to try..
 
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Re: Rm clutch problem (Giannis)

I'd bet donuts that the prev owner did the swap. Note that allen bolt at 12:00, and if he had a receipt for the plates vs. installation then it was probably midnight in the dark when it was finished.

I'd check that bolt too & see if it's the same length as the others, and if the head is touching the cover.
 
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Re: Rm clutch problem (Just Riding Along)

Looks like he lost this one... Could be the problem? The head is a bit bigger than the rest of the other bolts
 
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Re: Rm clutch problem (Giannis)

Could be the problem, or just one of the symptoms of a home mechanic. The question is would a guy who'd toss in the wrong bolt make any other mistakes?

First clutch I ever tore down I did without an owners manual, and when I was done it wouldn't engage. I popped it apart, and reversed one part and bingo.

Find a service manual, and see what's up.
 
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Re: Rm clutch problem (Just Riding Along)

Another thought:

When assembling a clutch, the plates are supposed to be thoroughly saturated with motor oil before assembly... I wonder if the seller threw those plates in there dry?
 
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Discussion Starter #11
Re: Rm clutch problem (banda)

Got the guys phone number, call him up. Ask him if the clutch was working after he installed the new plates. Never messed with that kind of clutch, but on the yoyodyneti clutch I have for the duc there is a curved washer that goes in b/w the basket and the hub, if left out the clutch won't clear the nuts that hold the basket to the driven gear and the clutch won't disengauge. But on the wet clutch duc the basket and driven gear are one piece, so your clutch is probably more like that. But there still might be a washer/spacer somewhere that was left out. Cause as pointed out if the guy lost a bolt for the spring retainer he could have done the same for the washer, they are easy to misplace/leave off I know. As Just riding along said, get a service manual and take the clutch completely apart. You really should do that type of stuff on a used bike anyway especially on a 10 year old bike. Unless you verify the maintance previously done to the bike. Cool purchase though, sounds fun once you get it going.
 
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Discussion Starter #12
Re: Rm clutch problem (jager)

looks like after a few short rides up and down then alley the clutch works much better, i have to keep the engine reving but my guess is with a MX clutch oil it will be ok.

here is a couple pics after i installed the side plastics and tail... now im looking fro a black seat cover..




 
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