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Mag Check

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Posted

What is happening when I turn my key one click to left for mag check and the rpm drops 300 rpm (normal) and then another click to left and rpm reads 1000 rpm higher but engine does not change (abnormal).

 

:blink:

 

Thanks

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Posted

Did this just start happening? What kind of tach are you using?

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Posted

My guess is the tach lead is not wrapped around both plug wires going to the same cylinder.. If your using the tiny tach.. If your using the normal rotax analog tach, it's anyone's guess, they give everyone fits. You can hear a 300 rpm drop easy, and a 1000 is way out of line. Check the plug wires too! I replaced mine and now there is no drop between mags.

:BC:

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