Topic: cb500 master cylinder rebuild kit

[jgary]

Hi.  I picked up an CB500 that needs front brake work.  I've done this on a 750 before, with a master cylinder repair kit from Partsnmore.  I can't find a similar kit for the cb500 four.  There's one for the cb500 twin, but not the four.  Does such a beast exist for the four?  Thanks!

John.

[Mule Train]

I had the same issue with my 72 cb500. I called the motorcycle barn place and they didnt have a part number, I took a chance and bought one for the cb550 on ebay from some place called "pony  something" or "horse something". I measured everything with digital calipers and it was exactly the same. The return spring was longer because I think mine was worn. Ill try to find the ebay auction and PM you.

[jgary]

Thanks!

J.

[Bodain]

You will find that most any master cylinder will work. It doesn't have to be Honda. You can actually buy a better master cylinder on Ebay that probably cheaper than the Honda rebuild kit.

[jgary]

Turns out I still had the guts from the rebuild I did on the 750.  I'll use that to compare sizes.  Taking the 500 M/C apart was a lot easier-it was stored in a barn, not outside, so it wasn't nearly as dirty.  The only part that is definitely not reusable is the circlip, so I may have everything I need already.  Thanks!

John.