Hey guys, I need your help. I know this is a CB750 forum, but I've looked everywhere else so I figured I'd try here.

I have a 1981 CB900F and I need a set of vacuum piston springs as whoever worked on this bike before me, has 4 different sizes and they're all damaged. I've checked all of the major parts sites and ebay with no results.

Can anyone point me in the right direction?