0.038' to 0.043"
40 to 45. 40 is common.
on the bottom of the oil tank under the right hand cover
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.
.04
.040"
There is no spark plug cap located on the 1993 Chevy Blazer. The spark plug gap for this vehicle varies depending on the type of spark plug that is used. The OEM spark plug gap for this year is 0.040.
.40