Quote:
Originally posted by Rushjob
Quote: | one last thing - when i took the cap off the resevoir today, the diaphragm was hanging down like a little condom inside the resevoir. i didn't think anything of it, but when reading the haynes when i got back, i noticed that this diagphragm is supposed to be compressed. is this significant? | Yes, it could be.
If the diaphragm is extended it means that there is very little if any fluid left in the reservoir.
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as i said in one of my other posts, the fluid level was very low. so much so that it would have been possible and indeed likely that with the acceleration and lean angle i was using that the hole at the bottom of the reservoir would have been exposed.
what i find really puzzling is that there seemed to be a cycle today that went like this:
normal operation for a few miles - biting point starts getting closer to bar - lever pulled back to bar eventually doesn't release clutch - bike stalls when at standtill due to clutch drag - switch off - put in neutral - wait 2 minutes - normal operation again......and so on.
i took the lid off the resevoir before and pumped the lever a few times and just one tiny air bubble emerged, so it's not full of air at the master cylinder end.
i'm also at a loss to know:
a) if there are no leaks, where has the fluid gone as the fluid level was fine last week?
b) if there is air in the system, apart from the possibility of the hole being exposed and air getting sucked in, then how did it get there as there are no leaks and i haven't taken any of the hydraulics apart?
c) if there is air in the system, i would have thought that i would have a spongy lever, end of story and that i would be able to get more effort by pumping the lever. however, what i actually have is a lever that works fine for a while but the biting point gets closer and closer to the bar until it disappears altogether.
one other thing that i have remembered, is that today, when i lost the lever effort on the move, i was sometimes, but only occasionally able to get it back by wobbling the clutch lever hinge vertically up and down in the hinge or by flicking the clutch like i was wheelying the bike. i would then have a clutch for a few gearchanges, before it went awol again.
