Originally Posted by Mike H
Hmmmmm. I tested the plug in the dark and there was no spark at all. I guess I'll be stripping it down tomorrow to see if I can find out why. If it's a problem with the kill switch it should be easy to fix, but if it's something inside the bowels of the magneto it will be 'interesting'. Bit of a shame considering that it did run for a short time earlier today.

Mike has the insulator(the white part centre of the plug) got carbon on it (it should be white not grey).

Unleaded fuel tends to carbon up spark plugs and as we all know carbon carriers electrical current thus the plug shorts out and guess what no spark.

I have been caught a few times with spark and it was a good lesson learnt.

Regards,
[Linked Image]

Bruce


Please do not PM me asking for support. Post on the forums as it helps all members not just the individual.