.040
ALL Twin Cam engine plugs are a .040 gap
The oil drain plug on a Harley Davidson 003 Dyna Wide Glide is located on the left side of the oil drain pan. The right side contains the transmission drain plug.
on the bottom of the oil pan
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.
If it's points or a Dyna S ignition you set the plugs at 28, other wise you set the plugs between 38 - 40
.040"
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.
The correct spark plug gap is 40 thousands on a stock harley plug
Look underneath the bike by the kickstand spring stud.
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.