Bob, i believe the magneto only charges the battery, if you have weak or intermittent or no spark i would look at the spark plug or the coil as the coil is what causes the spark. if plug is weak, the coil is bad or even the wire on the bottom of the coil. it is a ground. unhook that and see if it has spark. if it does the coil is your problem. good luck
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Bob, i believe the magneto only charges the battery, if you have weak or intermittent or no spark i would look at the spark plug or the coil as the coil is what causes the spark. if plug is weak, the coil is bad or even the wire on the bottom of the coil. it is a ground. unhook that and see if it has spark. if it does the coil is your problem. good luck