The point gap for a 7.5 Mercury outboard motor is typically set between 0.020 to 0.025 inches (0.51 to 0.64 mm). It's essential to check the specific model's service manual for precise specifications, as there may be slight variations. Properly setting the point gap ensures optimal ignition timing and engine performance. Always use a feeler gauge for accurate measurements when adjusting the gap.
The spark plug gap for a 2003 Mercury 125hp outboard motor is .040"
spark plug gap for a 1996 mercury 30 hp outboard motor?
What is the spark plug gap for a 9.9hp mercury outboard motor
0.020 in.
.020
.040
NGK BPR6HS-10 spark plug. Gap is .040
The points gap on a Merc 40 4hp is .020
A Mercury outboard will run well with a plug gap of .035 - .040 in.
40
Set the gap at .035 in. for a 115 Mercury.
The maker points in a 1967 model, 110 Mercury outboard, are gapped to .020 in.