Thread: Spark Plug Gap!
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Old 06-07-2009, 08:39 PM
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Retmachinist Retmachinist is offline
Motorized Bicycle Elite Member
Join Date: Oct 2008
Location: Urbandale Ia
Posts: 637
Thumbs up Spark Plug Gap!

I have noticed alot of discussion on different spark plug gaps on the forum. Most people seem to go with .020-.025. I have done alot of experimenting with different plugs and gaps.
For me .035 with an N.G.K. B5HS seems to be the best by far. I also noticed that my latest engine from Grubee actually had a manual with a few specs. They suggest a .036 gap.
What do the rest of you find works the best, just curious?

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