ohiomoto wrote on 08/02/16 at 09:58:34:It's pretty clear your fiber plates are toast and the steel plates may be glazed as well.
The reason it doesn't move at all is that when you fired the clutch (when it was still moving) everything was hot (and got really hot!) so the materials were expanded. This accelerates the destruction even faster. Then everything cooled down when the bike is shut down and sits for some time. Now the plate material returns to it's normal size, except there is less material because it wore off and is in your oil. So the plates are now thinner than they were before. So thin in fact that they hardly touch. And they are glazed over from the heat so they can't grab.
This happened to me a couple of times when I used to race 125cc motocross bikes in sand. Once things start slipping, it all goes south quickly. You finish the moto not even realizing the clutch was slipping and it won't move by time the second moto starts a couple of hours later.
The good news is, that you already have it apart. Just take the springs off and pop the plates out. I would do a set of friction plates for sure. if the metal plates are steel, you should be able to de-glaze them, but since things got as hot as they did, you might want to spend the extra cash to replace them also. If they are aluminum, they are surly garbage. Springs wouldn't be a bad idea either. That clutch kit you found would be perfect.
If the steel plates are tempered, could they have gotten hot enough to lose temper?
If not, you can probably measure them for wear and clean them in solvent or sand them or something to make them grip again. The frictions... less likely. I'd take them out and measure them though. Didn't Oldfeller talk about soaking friction plates? That had to do with oil, right? Maybe if they're not badly worn, the burned part can be sanded off? But then, you still have to deal with the weak clutch.
Ahh, but then, maybe you can add plates and make one of those Yoda performance clutches, as people here call 'em.Now, that's cheap.
Wonder how well it would work with stronger springs? Broken throw out parts?
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