Check the plug No. Last number is for the Gap size. NGK Resistor Spark Plug DPR7EA-9 The 9 is the gap size
0,7-0,8 mm
.35
35
Spark plug gap Honda CB 650- spark plug gap - 0.024-0.028 in. (0.6-0.7 mm) Honda Shadow VT750 - spark plug gap - 0.8-0.9 mm (0.031-0.035 in.) These are both hondas - please be more specific on type of Honda you want it for.
PR8EA
Spark plug gap is 0.8 — 0.9 mm or 0.03 — 0.04 inches.
Spark gap is 0.8-0.9mm(0.031-0.035in)
19mm thin wall.
.030 - .035
gap at .031 - .035
Check out my bio page for help on selecting the correct spark plug for your FourTrax.