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  1. J

    Loud upper-body tapping (even after valve adjustment)??

    I plan to check valve clearances again later this week, but assuming they're all in order, what should be the next places I troubleshoot? I'll try to upload a video tomorrow night of what it sounds like. For now I'll describe - It's uncanny loud... Almost as loud as the engine at idle. It...
  2. J

    Headlight & Corresponding Fuse (also faulty blinkers?)

    Hi guys, Earlier on in my rebuild project, while troubleshooting for spark, I noticed that the headlight didn't work and the blinkers are really faulty - sometimes they come on, sometimes they don't, and only rarely do they actually blink. Moreover, while checking fuses, I got a zero resistance...
  3. J

    Front Brake Safety Relay?

    Hi guys, I posted about this a while back within an unrelated thread I made. One dude had an idea, but I think I've eliminated the probable cause he suggested. So - here's the issue... A slap test will only work if the front brake is engaged, the bike will only start if the brake is engaged...
  4. J

    Clutch issues...

    Hi guys! The clutch on my 1979 xs400 doesn't spring back out after its compressed and never has. Also, sometimes when attempting to kickstart, the kick will slip right through without engaging the crank, as if the clutch were still pulled in. One thing I've noticed and am skeptical of is that...
  5. J

    Unique Stator fault... Is it fixable??

    Hi guys - I'm currently working through the charging system on my 1979 xs400 in search of at least one gremlin. I can get the bike to start, but it won't run for more than a minute before it eats up its own juice and dies. I determined that the stator was shorting out thanks to some awesome...
  6. J

    Turns over, but won't start

    Hi guys! I'm rebuilding a 1979 xs400F. The electric starter worked for a few minutes before crapping out on me (although the bike never started), so that's a question I'd be thrilled to have answered. Could something have fried itself in the process? I can get it a few gurgles out of it via...
  7. J

    Need help with electricals

    Hey guys. I'm rebuilding my first bike (1979 xs400F according to title). It hasn't ran in a little over 30 years, so things are a little guess-and-check, but it's been a fun learning experience. I'm finally getting to the ignition timing tonight. I have the gaps at .015 inches and am using an...
  8. J

    Timing / Gapping issues...

    Hey guys. I'm rebuilding my first bike (1979 xs400F according to title). It hasn't ran in a little over 30 years, so things are a little guess-and-check, but it's been a fun learning experience. I'm finally getting to the ignition timing tonight. I have the gaps at .015 inches and am using an...
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