Intermittent spark 50ESL74

[Keyboardman]

Hi all, I'm getting intermittent spark on cyl #1 on my engine. Have the open air tester set at 7/16 and while the spark is good and crisp blue, it seems to be erratic. I've checked the sensor coil with an ohm meter and it reads 16 ohms, within the specs and it's not grounded out. I swapped out an old Power Pack and it's doing the same thing with that one. Could the coil be bad? I just replaced both last season. What should I do next? Thanks

 

[boobie]

Check with cdielectronics.com for good trouble shooting procedures.

 

[Keyboardman]

Checked out the CDI troubleshooting guide. Thanks for the lead. I don't have a DVA so I
am unable to do some of the tests they recommend. I guess I'll try swapping the coils around and see if it's the coil that is bad or something further up the line.

 

[boobie]

Let us know what you find ??

 

[Keyboardman]

Swapped the coils around and now they both seem to be firing correctly. Strange. Still has an intermittent miss though. I'm going to take some video and post it tomm.