Thanks Kawabuser, glad you didn't take the p.i.s.s out of me for not knowing. On the TL's there are gears on the cams, driven by a gear, and then a chain to the crank. We get a problem with the anti-backlash mechanism on the gears, makes a noise when the mechanism doesn't work but no problem other than the noise.
I kind of like it, makes a clack-clack at idle, but grows into a delightful whine at revs, combines with the exhaust growl to make a very nice "race engine" sort of sound. I bet Honda's RC51 twin doesn't have that Suzuki magic, no more than the ZX-12 will ever "out-sexy" the 'Busa.
PS. Back on the topic of recalls and people who do their homework, there is a guy I know from the TLR sites that (don't ask me how) got the ENTIRE Hayabusa micro-film stuff, the same/similar that the dealers use, put it on a CD, and you can see all the exploded part diagrams and part numbers when you need stuff just like your dealer can. You get the CD when you join his club, about US$30 or so.
Once you start talking recalls and you want to know part numbers and keep one step in front, this is a good thing to have. I think his web site address is posted somewhere on this 'Busa board.
[This message has been edited by 99TLR (edited 09 October 1999).]