FUTABA 12K Instruction Manual page 133

adjustments of engines that offer mixture control
carburetors.
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Note: Initial settings does not assign fuel mix to
any channel. Prior to utilizing the Fuel Mix
settings, select an unused channel on your
receiver and assign it accordingly for the
mixture control. Additionally, please make
sure that your [Control] and [Trim] are set to
null [--].
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<Model Menu (Common Functions)>
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