My 1986 Fazer has a rod knock. I have yet to tear down the motor, but my manual shows traditional bearings on the crank side. Are these readily available? What about the wrist-pin? Is there a replacable bushing? I Don't want to waste my time tearing it down if it's a lost cause! Any advise would be greatly appreciated (I've owned this bike since 1991 and have become quite attached)! Thanks---Shawn