hayabusa99b/w
Registered
I just did a clutch mod on the busa this last week. I bought a welded one piece part off of ebay and put it on last wednesday. After putting it on and taking it out for the first run the clutch slipped after anything above 4,000 rpm's which I expected due to the clutch mod requiring heavier springs so I put it back into the garage, took it back apart and went inside to order the heavy duty clutch springs from Schnitz Racing out of Indiana. I paid $32 to have them overnighted by air because I wanted to race on Friday night at the track and checked the shipping thursday on it and they accidently shipped it ground instead of air they said. (GRRRR!!!!) I ended up using washers as spacers to beef up the springs until the heavy duty springs arrived on monday and went to the opening night at the dragstrip. I hauled the busa out of the trailer and was the only bike over a 1000cc's besides one zx-12 so I was ready to prove myself. I got up to the line and staged, left hard out of the hole and the clutch started slipping again above 8,000 rpm's. I ran a 7.99 in the 1/8th mile at 76 mph!!!
I normaly run at least 110mph in the eigth at a low 7 high 6 second time frame without the clutch mod done leaving the line at 3,000 rpm's to keep the clutch from chattering! I made one more run to make sure and shut it down almost right off of the starting line as it slipped right away. I brought it home and monday put on the heavy duty springs, put oil back in it and bled the clutch line and took it out for a spin. The first thing I noticed was that the clutch was not fully disengaging when I pulled the lever all of the way in so I shut it off and bled it again. It still did it after I started the bike back up so I took it out on the road just out of frustration to see how it ran through the rpm's. The first run was awesome as the bike did not slip at all throughout the entire rpm range so I ran another run to make sure and it worked perfect but the clutch was still not fully disengaging. I took it back to the garage and adjusted it one more time and let Kawiboy11 take it out for a spin as his bike is in my garage getting the turbo put on by both of us. As he took it down the road the clutch started to slip again so he brought it right back and I took it out one more time to see why as I adjusted the clutch lever and bled it again. I tried it one more time and it slipped on the top end. I put it back in the garage and started working on kawiboy11's turbo as I was sick from all of the problems I had with mine so far. I am pretty sure that the stock clutch that is in it is fried even though I only had it slip five times and got out of it right as it started slipping and just wanted confirmation on that. My other question is why does the clutch not fully disengage even though I bled the line five times and refilled it with fluid each time I did it. I don't know of any other way to adjust it and I wouldn't think that Schnitz and other companies would sell springs that affected the clutch not fully disengaging!! Any thought's on this problem would be great!! Thanks!!!
