Exhaust leak at spark plug


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Posted by John on January 10, 2004 at 12:37:37:

Every time the aft piston in my atomic 4 gas engine fires, I can see a puff of smoke shoot out where the spark plug seats into the head. Eventually the engine will choke from lack of air. I have already replace plugs and cleaned out the threads and made sure the plug is seated well. The head does not appear to be cracked. Could this be caused from a plugged exhaust port? What could also cause this? Will I need to take the head off? Thanks, John


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