.030
.028 in.
for the NGK plug # 2411 it calls for a gap of .032
NGK CR8EH-9
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.
The intake is .002 and the Exhaust is .004 cold. Instrustions say the gap is measured at the cam/rocker. Not between the valve stem and adjust screw.
You can purchase a Honda CB from AOL Autos. Alternatively, you can purchase this vehicle from eBay motors or from local classified websites such as Craigslist.
My 71 CB 500 is 22mm I believe. Try that
This is honda CB4 Hyper vtec 1999
50 kmpl
CB3602037561
www.denniskirk.com