Smoke rings from the head???

I am blowing smoke rings through the small hole in the head on the kick starter side of the engine. What is the problem?

Advice from anyone who has experienced and solved this problem would be greatly appreciated.


I am no YZ expert but is your spark plug loose ?

The hole drains water out of the spark plug chamber in the head. It could be that air is escaping past a loose spark plug.

I will check that. I have not been riding the bike much lately and when I have had trouble starting it I pull the plug and clean it off so it is quite possible that the plug is loose. Thanks.

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