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115 ELPTO no spark 2 cylinders

jskopek

New member
Top two cylinder have no spark, looking for suggestions on repair: I originally thought it was a fuel problem untill I checked spark with gap tester. I do not want to replace stator untill I have sufficient evidence that it is bad.

Replaced trigger, compression test 120PSI, CDM Coil Test ok, wiring looks ok. Plugs ok.

Any help would be much appreciated.

Thanks!
 
You may want to try swapping the ignition coils with two from other cylinders and see if they fire. That would eliminate the ignition coils. If that is not it, my suggestion would be to get google search for the CDI 7th edition of outboard ignition troubleshooting guide. There are test procedures for your engine that require a digital voltage analyzer which you can purchase or build yourself. Also, some resistance measurements may find the problem but DVA testing shows actual peak voltages that you see in the ignition system.
 
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