.04 inch
where are the spark plugs on a yamaha115 4 stroke motor
The spark plug gap for most Yamaha outboards is around .030 - 0.035in.
.35
you have to make ngk b8hs-10
The recommended spark plug gap (per NGK) is .039"
gap should be 0.9mm (0.035") N.
40
.030
The 1998 model, Yamaha 250 hp outboard, requires an NGK BR9HS-10 spark plug, gapped to .039 in.
The Yamaha Pro 50 outboard requires an NGK BR8HS-10 plug, gapped to .039in.
The spark plug gap for a 2003 Mercury 125hp outboard motor is .040"
spark plug gap for a 1996 mercury 30 hp outboard motor?