Spark plug gap 1986 honda shadow 500 - 1984 Honda VT 500 C Shadow

SOURCE: spark plug gap

Don't change the setting on the plug. The 400's are happiest when you just plug in new ones and ride. They like NGKs the best. There are two types for the 400. One runs hotter. This choice will depend on which country you live in and what the ambient temperatures are.

SOURCE: spark plug gap

it is 0.036 in

SOURCE: Valve specs for VT 500 honda shadow 1983

Hi,
Your valve clearances should be:
Intake .08-.12 mm (.003-.005 in)
Exhaust .12-.16 mm (.005-.006 in)
I usually start all gaps in the middle of given specs, then fine tune from there.
Hope this helps

SOURCE: what is the gap for a cr250 honda spark plug

it is 32.0 buddy

SOURCE: 2207 Honda Shadow 750--need to know spark plug gap

Hi and welcome to FixYa,

To my understanding, sparkplug gap should be 0.8 ~ 0.9 mm (0.03 ~ 0.04 in).

Good luck and thank you for asking FixYa.