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General Motorcycle Repair

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How to Rebuild a BMW Front Brake Master Cylinder

Our project for this issue planned itself. Editor Hall picked up this 1988 BMW R100RS late last summer. At some point over the winter, he noticed a spot of fluid on the floor and quickly figured out it wasn’t engine oil, but brake fluid. The front brake master cylinder was weeping fluid and it was dripping into the inside of the fairing, and eventually to the shop floor. Not good. ...

Staff | Aug 17, 2021

Motorcycle Classics Magazine

Featuring the most brilliant, unusual and popular motorcycles ever made!