The spark plug used in the Johnson 200 Ocean Pro is the Champion QL78YC. The proper gap for this plug is 0.030 inches.
.030 for the ql78yc plug
It should be .040 and the NGK Spark plug for that is a BP8H-N-10 or a Champion QL78YC/L78YC I am not sure what the AC delco number is, but they all should be .040
GAP .030"
The L76V is a surface gap plug. There is no measurable gap.
Champion spark plug RJ19LM is for lawn mowers or similar equipment. The standard gap is .030 inches or 0.76mm.
the spark plug gap is 0.7 to 0.8 for champion plugs
spark plug gap of 0.7 to 0.8 mm for champion spark plugs rc7ycc or rc9ycc
.30
.040
.30
a gap of 0.7 to 0.8 for champion spark plugs