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Thread: Not sparking every rotation
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Old 04-24-2023, 06:51 AM
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Truckracer
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Originally Posted by vease
I have an issue trying to start and keep running my 3W 80 with rcexl ignition unit.

If i manage to get it running it runs fine at top end and will tick over for a short while but then die.

Upon investigation I've found that it sparks on some revolutions but not others.

I've tried different ign units and different plugs and no difference. Also the pick up is brand new

Any thoughts welcome
How are you testing? Turning by hand? If so, newer versions of the Rcexl ignition won’t fire dependably when the prop is turned slowly. How is the plug cap? If the insulation is brown or black or if the cap has ever contacted anything, it could be bad and should be replaced. Caps are the most common failure on ignitions.
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