35 on the gap gauge
The recommended spark plug gap for a 1996 Harley Davidson 883 Sportster is .040. That is the most common gap for most Harley Davidson engines.
.040 in. RA8CH
.040, or 40 thousandths
The proper plug gap is 0.038-0.043 Mike
.040 is rcommended gap .040
.040
.040".
The proper air gap is .032 to .036 depending on spark plug brand.
most likely a bad coil
HD 6R12
Gap the plugs .038" to .043" and torque the plugs to 22 ft/lbs.
Saw online the gap is .040