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Old 08-08-2008, 07:14 AM
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
Join Date: Jan 2008
Location: up north now
Posts: 11,531
Default Re: Will it hurt to increase air flow?

There is a clip on the needle in the carb...moving it up makes the engine leaner, moving down obviously make it richer. It's the only adjustment on the carb other than the idle speed.

More air need more fuel, Less needs less.
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