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Hello All 1977 XS400, 11K miles The ask: What font master cylinder replacement do you recommend for my motorcycle? The details: The original front master cylinder was corroded beyond repair. I bought two types of replacement master cylinders, one 16mm bore and another 12mm bore. They are the...

Hello, 1978 XS400, 12K miles The original front master cylinder was completely seized when I bought it. I did a quick search for a generic replacement ($20) and installed it. I bled the brakes as much as I could, even used a suction pump at the bleed valve to get every tiny bit of air out. The...

Hello. 1978 XS400, 9.5K - restoration project. Has anyone done a two-to-one carburetor conversion on an XS400? I'm considering doing that and using a single VM34 carburetor. Any advice or pointing me in the right direction is greatly appreciated. The main question I have is if a two-to-one...

Hello. 1978 XS400, 9.5K - restoration project. Searched the forums but couldn't quite find an answer to a specific question I had. I'm getting ready to replace the clutch plates and friction discs. The only thing I wasn't sure of is what gear should the motorcycle be in? Is neutral fine? Also...