Echo CS-670 chainsaw, no spark

danw

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May 7, 2022
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CS-670 ran last fall. It would not start or run on ether when I just got it out, so I checked spark with a new plug - no spark.

Before I buy a new coil, I want to make sure that the kill switch or kill switch wire is not grounding out and defeating the coil's effort to create a spark.

I don't how to get at the back of the kill switch, so I removed the recoil starter cover and removed the wire from the terminal on the coil (photo shows the wire hanging, disconnected, outlined in red), that presumably runs to the kill switch.

CS-670 coil with kill switch wire removed-hi.jpg

If the kill terminal on the coil has no means of grounding I assume the kill switch circuit is out of the question of being a cause of no spark.

I put a piece insulating tape on the wire's terminal so it wouldn't ground out, put the recoil starter back in place and spun the engine. No spark, not a hint with the kill switch wire disconnected and not grounded.

Spark test with new plug.jpg

Is my kill switch wire test, that removed the kill switch wire from the coil, conclusive?

Dan
 
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