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yamaha xs400

  1. Motorcycle Repair
    I just finished doing a top end rebuild on a 78’ xs400 Yamaha. In hopes of fixing a low compression issue on the left cylinder. Had the valves and seats resurfaced, with new valve guides (rings, pistons and cylinders were in good shape) I have done the cam chain adjustment, set the valve...
  2. Motorcycle Repair
    I bought a 1981 Yamaha XS400 as a starter bike a few months ago. It always idled a bit high (around 2,500 rpms) but that was the only thing wrong with it. A few weeks ago I got on it (it had only been a week since my last ride) and it wouldn't start. When pushing the start button, there was a...
  3. New Member Introductions
    Hey everyone - I just got my first bike, it's an '81 Yamaha XS400. It's a little weak but is a solid starter! Hopefully I'll upgrade next summer...any suggestion of cafe style bikes to get that are around $3k-5k?
  4. Motorcycle Repair
    Hi All, I've been wrenching on the above bike for a while, got it running, sometimes that is. It starts up, with more than the desired amount of kickstarts (electric start clicks but doesn't catch), and when it does. It won't idle unless its on the choke. To make things clear once it starts...