Posted by whizkidkyus on October 29, 2011 at 19:26:12 from (64.130.158.6):
In Reply to: basic troubleshooting posted by Bob Huntress on October 29, 2011 at 18:43:04:
Just because there is fire going to the spark plug dosen't mean that there is spark at the end of the plug . Yes , I agree that if there is spark going through the wire to plug ,then chances are that the plug is firing ,but that is not always the case . Plug could be dead or fouled out with carbon or oil and not firing. You actually need to pull plugs out and check for fire there by grounding the plug out . On multiple plug engines ( 4 cyl ., 6 cyl. , etc. )you need to pull more than one plug out to make sure that their firing , at least it wouldn't hurt . On a 1 cylinder engine replace plug with a know good one or a new one .
Whizkid
P.S. As always when working with spark plugs and wires be careful that you don't electrocute your self or start a fire somehow from gas squirting into an " open " cylinder .
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