No spark, no fire. That is the name of the game when it comes to Harley Davidson spark plugs.
Follow along with this critical video on the importance of maintaining healthy spark plugs. Bob and Mark review the simple steps of Harley Davidson spark plugs service that are some of the most important we can perform during a Harley service:
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How to change plugs on a v rod muscle.
ok the plugs are out ..... how about looking at color condition what about a little dielectric on plug cap