Greetings all,
Picked up a non running 750 the other day. Haven't had one in my hands for about 12 years and never got into the clutch. The clutch on this thing is adjusted way to the max and the lever pull is brutal. Fella replaced the friction disks then let it sit. I'm going to post some photos to get some experienced eyes on the wear on the parts. The spring is over 34mm that's in it and I thought they were supposed to be around 32mm. Any advice would be appreciated.
HT
Hmm...I suspect the clutch is the wrong disks, and an attempt was made to improve the "grip" with stronger springs afterward. I'll measure the spring lengths tonight (there's 2 types), will try to report back. Meanwhile: if the plates were replaced with aftermarket plates, especially within the last 5 years, there is a REAL good chance they are the wrong ones. While appearing identical in diameters, the superbike (cork) plates out there today have thinner plates. They happen to be the same thickness new that the Honda plates are when fully worn out: new 750 plates should be 0.141" thick (some are 0.138", that's OK, too) and when worn out they are less than 0.132" thick. The brand-new superbike plates are 0.131" thick new.
There's a few things to do: one that's simplest is to get the right plates. Another option is to install and extra steel plate, on the top of the stack if it fits onto the splines OK. Or, you can put it at the bottom of the stack, too. If the bike is a K0-K1 clutch with the steel top plate, you can just swap in an extra cork plate and remove the top steel plate, replacing it with a later pressure plate. There's several workarounds, here...I'm trying to add them together, as I have time, for my next book on these bikes.
