misfiring

  1. S

    '77 XS360 Backfiring above 5000 rpm + other issues

    EDIT: I think I found the issue, the new battery I installed is bad. For the life of me I cannot figure this out. Sorry for the long read but I feel like I should include everything I did, which is a lot. I recently replaced the coils on my Yamaha (1977 XS360) because the bike didn't really...
    • SimonFordman
    • Thread
    • 1977 backfiring electrical engine engine question ignition coil misfiring tuning xs360
    • Replies: 0
    • Forum: The Garage
  2. AndyJ

    Is This Normal?

    Is this normal? Bike was running beautifully several weekends out, then one day began misfiring on the right side. Right side plug looked fouled, I though a fresh spark plug would solve the problem but didn't. I noticed when the plugs were out that both cylinders have spark however when I turn...
    • AndyJ
    • Thread
    • ignition control module misfiring spark plugs tci
    • Replies: 26
    • Forum: The Garage
  3. D

    Click sound, falling idle, backfiring when cold starting

    Hey all. So like the title says, I have an odd click noise occurring lately. Was messing with the electrical recantly, but that was just to clean up the mess that the PO left me and to install new turn signals. I feel like it's completely unrelated but not going to rule it out just yet...
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