f4 magneto weak spark

wtk · Jul 21, 2012

I have a f4 magneto on a 1927 regular.
I had it well cleaned,new coil,condenser, and points.It has a weak orange spark threw the plug wire but nothing threw the plugs. it is sparking threw the spark gap. I don't know if it is suppose to spark at the breaker points but, its not..

Oldiron29 · Jul 21, 2012

WTK, have you tied another plug? Spark is spark it sould come through the plug. Bad coil usually
no spark at all, replace the coil.also point must be clean and close to get good spark. oldiron29

teddy52food · Jul 21, 2012

What do you mean by sparking threw the spark gap? If it is jumping the safety gap inside the mag, the mag is good but you have a problem with the rotor timing, or bad wires or bad cap.

f4 magneto weak spark

wtk

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Oldiron29

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teddy52food

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