How do you index a spark plug for 1990 ProV 150? Which way should it point?
How do you index a spark plug for 1990 ProV 150? Which way should it point?
wWy index plugs on an carb motor with a center mounted spark plug? The need to index plugs is on a head that has the plug mounted other than in the center, so that the plug gap will face the spark, but with it in the center of the head, indexing will not help anything...
Thanks, I was just wondering. Maybe that could get to be a problem..wondering
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