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Hey all, I took the xs400 out yesterday for it's first shake down run after installing new tires and doing some maintenance over the winter months. All is well but I need to adjust the rear brake and the clutch. The issue is that the clutch is disengaging right near the end of the lever travel...

Hey guys, The pilot jets in my carb are a bit loose, and vibration has cause one of them to back out a bit. Is it ok to use a thread lock/sealant on these? If so, what is recommened? Any alternatives? These are new pilot jets, recently installed. Thanks!

Hey guys, I recently changed out the fork oil in my 81 xs400 and the suspension is still very soft. The springs look fine. They stick out the top considerably and took quite a bit of force to compress them. I used 20w synthetic fork oil, as recommended, and filled the forks with 142cc's, as...

Hey all, The XS400 has been stopped for some time. We routinely start it up but yesterday was the first time in a long time I actually took it out for a stretch. The acceleration seemed a little sluggish at first, but after about 10KM of riding, it seemed to improve, however I don't think she's...

Hey guys, The right mirror on my dad's xs400 will not stay in place. I believe it's the ball and socket style mechanism? Is there a way to tighten this so the mirror doesn't droop? I'm going to have a look at it tomorrow but figured I'd ask first. Thanks!

Hi all, I've been scouring the local classifieds looking for an older bike to rebuild/restore and I'm finding that the owners of many of these older machines do not have titles/ownerships for their bikes. Can any member here comment on the law regarding this in Ontario, Canada? Should I...

Hi all, So I went to start up the bike yesterday after it sat for a couple of weeks and I had some difficulty again. It took about 12-15 crisp kicks before it came alive. The electric start won't cut it in this situation. I've kept the battery on a tender so it's not the battery. I had...

[/IMG] Hi all, I've got a very nice 1981 Yamaha XS400 Special II with just over 12000 original Kms. I just had the carbs disassembled and cleaned, replaced the spark plugs, and reconditioned the air filters. I added a fuel filter and drained and replaced the gas. The battery was tested and...

Hello all, I'm having issues with my brake light, it's always on. I examined the switch near the brake pedal and it looks like the pedal operates a plunger. Well that plunger wasn't making contact with anything whether the pedal was in the up or downward position. I figured it was an easy...

Hello everyone, I've got a 1981 special II that needs some new air filters. I want to go with stock style. Would I be ordering filters for a xs400H? Are the filters for 78-81 xs400's not all equal? I thought they were. Please confirm. Thanks.

Hello all. I'm new to the forum. I've never rebuilt a motorcycle but have some general knowledge of automotive repair. I'm hoping that with the help of this forum and some research, I can get this thing back on the road. I'm also hoping that this will not require an intensive rebuild...