fantom carby settings.

Old 08-22-2004, 01:15 AM
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Default fantom carby settings.

hi, does anyone know what the factory settings are on the Fantom FR12 Rear Exhaust motor?
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Old 08-22-2004, 08:49 PM
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Not sure what factory settings are but if put the main needle at 2.5 turns and bottom at 1 turn + 1 hour out from closed for rotary carb, then think 1.5 turns out for slide carb turns out from closed should fire right up and be real close.
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Old 08-22-2004, 11:41 PM
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i just rebuilt my motor and im wondering what settings i should run the needles at for break in
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Old 08-23-2004, 10:31 AM
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Whenever I break a motor in I just keep the bottom needle same as "race tune" then the main needle is same or only 1/8" richer than when tuned right. I just don't drive the engine that hard keeping rpm down until loosens up some during break in, once loosened up and have solid polished ring top of the sleeve then good to go.
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