1989 with a 'clunky' rear end - need some help
I just purchased a 1989 ZX-10 with only 20,000 km on it. Bought it from a friend. Obviously it has been sitting for a while. After driving it for a week I have noticed that the rear end is very clunky on a shift.. both up and down. The cushion drive in the rear hub, are they historically a 'clunky' design. Is this something I will have to get used to, its horrible.
Also the rear shock, nitrogen right??
Has anybody found an oil that helps smooth out the shifting in the tranny. I have 10W40bike oil in there now (non synthetic) and want to change it, any suggestions are greatly appreciated.