KHEEREMA129911
New member
I updated my R90/6 to run dual ATE calipers and picked up a BMW handlebar mounted master cylinder on ebay with a smaller bore for the dual calipers. It plugged right into the switch controls and the lever is identical to the stock R90/6's.
I am having a brake fluid leak right at the resovoir cap. Removed the cap, found the rubber diaphram/seal under the cap in need of replacement.
Problem is, I'm not exactly sure what year or bike the M/C came from. It has a round fluid resovoir, and it calls for "DOT 4" on the cover.
I called the dealer, and they weren't exactly sure, thought maybe R65? He looked it up and said I'd have to buy the whole master cylinder to get the rubber diaphragm/seal! I checked some parts fiche, but they are showing a rectangular master cylinder for the R65?!
Can anybody help me identify this Master cylinder? I don't have a pic right now, but I'll get one tonight if it will help.
I am having a brake fluid leak right at the resovoir cap. Removed the cap, found the rubber diaphram/seal under the cap in need of replacement.
Problem is, I'm not exactly sure what year or bike the M/C came from. It has a round fluid resovoir, and it calls for "DOT 4" on the cover.
I called the dealer, and they weren't exactly sure, thought maybe R65? He looked it up and said I'd have to buy the whole master cylinder to get the rubber diaphragm/seal! I checked some parts fiche, but they are showing a rectangular master cylinder for the R65?!
Can anybody help me identify this Master cylinder? I don't have a pic right now, but I'll get one tonight if it will help.