ALL Twin Cam engine plugs are a .040 gap
Oil drain plug is on the left side on bottom of oil tank. Dry sump engines do not have drain plug on engine.
The suggested spark plug gap for a 1973 Harley Davidson is 0.040. It is the suggested gap for most of the spark plugs of that era.
.040"
The correct spark plug gap is 40 thousands on a stock harley plug
the gap for a Harley plug on a 88c.i. is 30
The spark plug gap should be .040"
.038 to .042 depends on spark plug brand.
.040"
.04
The factory plug is HD PN 6R12- This is also available in the gold series plug. The factory plug is HD PN 6R12- This is also available in the gold series plug.
What is the spark gap plug setting on a 2007 Honda accordAnswerwhat is the spark plug gap setting on a 2007 Honda accord?
What is the spark gap plug setting on a 2007 Honda accordAnswerwhat is the spark plug gap setting on a 2007 Honda accord?