Re: M fouling plugs

Posted by John T on October 12, 2006 at 07:40:15 from (66.244.90.5):

In Reply to: M fouling plugs posted by chadd on October 12, 2006 at 07:27:20:

Chadd, If theres a flat black colored powdery sooty even residue on the plugs fouling them that can be excess unburned fuel. Among things that can help that problem are to use a hotter heat range plug, the use of thermostat or radiator air restrictions etc to get n keep the engine temperature up higher, and ESPECIALLY dont run the carb any richer then necessary and make sure the choke butterfly plates is fully open n syays there and theres no inlet air restrictions in the air cleaner or inlet piping etc. Of course, a good hot ignition system including clean proper gapped points with a good condensor and wire core plug wires. If the spark plugs spark is a faint thin wimpy yellow spark (ignition problem) versus a good visible blue spark, that can cause premature plug fouling also.

John T

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