backfiring

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    '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
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