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Thread: Rattly clutch?

  1. #76
    apriliaforum prov-nov benuk's Avatar
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    May 2011
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    well, this just gets more and more interesting!
    Just to be clear
    The clutch lever pushes fluid down the pipe which then pushes through the slave cylinder onto the rod which opens the clutch
    When you release the lever, the clutch springs push it closed, pushing the rod into the slave cylinder and forcing fluid back up to the master cylinder and pushing the plunger back out
    The plunger screw position fixes where the aperture is that allows fluid to return back to the master cylinder. Hence, if it's too far in, the clutch can't push fluid back up, can't close properly and ends up slipping.
    If there is air in the system, then when you pull the lever in, you compress the air, thus you don't push enough fluid, thus you don't open the clutch completely and it drags, typically making you stall.
    However, it would be very surprising to have the symptoms of clutch slip and clutch drag at the same time!
    if you have tried screwing outwards the plunger, and also bled the system (easy compared to brakes) and still have problems, I actually would start to worry maybe you have a broken clutch, since before my proper entire clutch explosion, it was dragging and stalling.
    let us know....!!

  2. #77
    apriliaforum prov-nov benuk's Avatar
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    May 2011
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    France
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    Hey there. No news?
    Well today I got round to taking out my clutch and checking it. (this is the new engine that I put in after my exploded clutch disaster on the other engine). I'd never checked it and of course had been regretting it ever since, fretting over whether it might be letting go or not.
    So anyways, it only took 45mins (easy once you know how huh?!)
    don't bother draining the oil. let the bike lean away from you on the side stand. clutch cover off (the round one, not the entire side of the engine), undo 6 clutch spring bolts, take that bit out, slide out clutch rod, remove plates then (I don't know if you did this step) undo the big 28mm nut in the middle of the clutch to remove the clutch inner. to do this, I put the bike in gear and held the back brake down. once the clutch inner is out, I can see the three bolts and checked them, they're all fine. so put it all back together!!
    so here's photos of what I'm talking about, if it helps.
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