.045
the gap for a Harley plug on a 88c.i. is 30
it the 5/8 hex bolt on left front of the sump pan. you will need 1 quart of Harley Transmission and primary oil.
I need the spark plug gap for a 1340 evolution engine on a 1997 Harley Davidson Heritage springer soft tail
I prefer Autolite plugs. Dyno shows them to add about 2 HP.
.040"
what year?
A 5/8" socket wrench.
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.
The correct spark plug gap is 40 thousands on a stock harley plug
On a 1993 Harley Davidson Low Rider custom, the transmission drain plug is underneath the transmission. The filler plug is on the side of the transmission case.
.04
.040"