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ignition spark coils

  1. K

    Timing on 1/4 not showing

    This feels like another “Weak Spark” help thread but I’ll go ahead anyway because Ive ran out of knowledge. In short I’m having trouble with my 1980 cb750f not running on all four cylinders. 2/3 seem to get to temp pretty quickly while 1/4 are cold. So far I’ve tested : -Primary and secondary...
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