Possibilities: Hydraulic has air in it, and built up pressure in the line. I've seen brakes do it so bad, that bleeder had to be loosened to move bike.......... ...Or: Master cylinder has some dirt, or something, not allowing fluid back in. Try bleeding with fresh fluid............ ...Or: Clutch plates were not stacked right. Total stack height critical. Should be about 2.00 " total. Less than 1/16" from that can cause pressure plate to bottom out on hub, taking spring pressure off plates. Busa comes with various different thickness of plates. It could have been done wrong at factory.... ....If dealer can't get OEM plates quick enough, Kaw 1977~ 83 KZ 650 or 83~85 GPZ 750 plates can be used, in a pinch. Must have total stack height correct. ........ ..Have to go, now. Will check post, when I get back. More info to come........... ...Back, now. / Re: Back torque device: This just has 3 tabs that are just beveled on one side. It only works against clutch pressure, in one direction. It takes some of the shock, from rear wheel, working against motor, on deceleration. It can sometimes make the clutch act strange, if lever is pulled back in, while it is still being let out, to engage clutch. Brock device is OEM unit that is welded, to prevent its movement, that affects clutch operation, or feel. The back torque device would not cause your described clutch problem, unless it somehow froze up, or was not spaced correctly. Your clutch problem is more likely caused by other things mentioned farther up in this post.................................... ...2000 clutch slightly different than 99 clutch, that I have, but general design should be close.
[This message has been edited by c.dolan (edited 29 February 2000).]
