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Old 02-05-2013, 06:48 PM
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GearNut GearNut is offline
Motorized Bicycle Elite Member
Join Date: Aug 2009
Location: San Diego, Kaliforgnia
Posts: 5,106
Default Re: I think I need help. Bike Running too rich?

I say that it is running rich and you need a one point hotter spark plug.
The black on the plug tells that the state of tune is rich, the 1/2 clean 1/2 black tells that the spark plug is too cold to completely keep itself properly clean.
"It's a chinagirl. It's a sometimes fun little engine that often will break your heart. It's disposable.

Does not come with a fortune cookie."
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