replacement

So I've got a very bad old fusebox on my 1980 xs400 Usa custom with glass fuses (the stock one). Now I want to replace it. Do you guys have any experience with this? And some tips and tricks on what to look out for. I've already read something about this on a different thread. But not the exact...

Hey, So I've been working on getting my "new" 79 xs400 onto the road, and the problem I'm facing is the piston in the rear master cylinder is stuck inside the cylinder. I bought a rebuild kit for it that replaces the boot, seals and the spring, but that isn't really going to help if I can't...

My 1977 xs400 needs throttle shaft seals to be replaced. Does that mean it needs a full carb rebuild? The previous owner said he "rebuilt the carb not too long ago." I'm guessing he either overlooked throttle shaft seals or used bad ones. What do y'all think?

Hey all, I am having trouble figuring out what lamp would work in my '79 SOHC. The reflective material is falling off of the inside of my lamp and I would like to upgrade to an H4. I've read that our lamps are 165mm (6/5")? Is this true? I'm also confused about what lamps will work with my...

Not my week, apparently. A few days ago I took apart the speedometer and cleaned and lubed it to keep the needle from bouncing. Worked great. Today, the needle broke off. What are my options for speedo replacement? MikesXS has a few. Do the 650 speedometers work on 400?