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Description & Operation

The fuel evaporation system consists of special fuel tank, pressure/vacuum relief fuel cap, vapor valve, connecting hoses and a carbon canister. Fuel vapor is vented through the vapor valve through connecting hoses to the carbon canister.

From the carbon canister, vapors travel to the intake duct through a connecting hose. A small orifice in the vapor valve prevents liquid fuel from passing to the carbon canister.

Fig 1: Fuel Evaporation System
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