Vacuum leak, clogged/dirty fuel injector, bad spark plug/ wires.
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 spark plug gap for a Chevrolet Tahoe 5.7 350 Vortec should be set at .060 inches. This spark plug will be purchased preset from any auto parts store.
According to Champion spark plug applications chart, the correct gap for 1995 Chevy Tahoe 350 engine is .035
.060
Nothing
.060
The 1999 Kia spark plug gap setting is .035. Most spark plugs will be pre-gapped by the spark plug manufacturer.
.040 for best results
0.040 inch
What is the spark plug gap for a 1999 Nissan Quest w/ 3.3 engine?
The spark plug gap on a 1999 Suzuki Intruder 1500 is 0.035 inch. This is a common spark plug gap size for motorcycles.