User Manual

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Starting from the gas tank, the fuel is pumped to the carb through the inlet. The fuel works its way
through the fuel pump through a little diaphragm pump which is controlled by 2 one way valves (little flaps).
The fuel then passes through a needle & seat that is controlled by the "float" diaphragm. The "float"
diaphragm manages how much fuel is available for the idle, low-speed, and high-speed throttle positions, by
opening & closing a passage utilizing a small lever attached to the needle. The fuel is then "standing by" in the
float cavity area waiting for a vacuum signal at the various jets. The lever setting is very critical since it
controls the available fuel to the jets. If the lever is too low, the engine will run lean, if the lever is too high,
the engine will run very rich and will likely flood out at idle.
The fuel starts its journey through the pump assembly first...