Master cylinder destroyed!

[cid]

So the previous owner laid down my baby and filed the corner off my master cylinder, not affecting the operation, and it looks terrible. Also the screws to take the cover off is stripped. So Master C is shot. What is the cheapest/best way to fix this prob so i can maintain my brakes?

[old_skool]

Well, sounds like you need another one, one way or another, cheap....ebay, MC boneyard, craigs, post a wanted in our parts wanted section first, someone may have a part to sell you cheap.

[bluewool]

5/8" piston? It's cast into the bottom usually. Apparently the Kawi ones are cheap and plentiful. I put a newer Katana one on mine but I didn't need a mirror mount.

[AJ]

I have a master cylinder from a 1985 GS550e. The corner is "bevelled", but not into the gasket. Stored for 20 years until I used it as a "temporary" on my 1100. Let me know if you're interested.

[salty_monk]

Should be 14mm not 5/8" on that bike. The duals used the 5/8" piston.

For a modern one that would work well check out the MC from the 2008-2012 Kawasaki KLR 650.

It's 14mm & has a mirror mount on it too.

The 5/8" bore from the Kawasaki EX650 from 2006-2008 is a good one for the dual brake models.