Recent content by Jeremy

  1. J

    1981 Yamaha XS400 left cylinder not firing

    Thanks that about lines up with what I did. I ended up going a couple sizes bigger on the pilot jet, and that seemed to have fixed it
  2. J

    1981 Yamaha XS400 left cylinder not firing

    Hello I have a 1981 Yamaha xs400 that I bought for 50 dollars and rebuilt. The latest problem is left cylinder does not fire. What I've done so far is switch the spark plugs, and ignition coils that didn't change anything. Then I did a compression test they were both around 150 psi. Finally I...
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