Hover over a number for the key, click on the menu items below to show the vapour/vacuum routings.
Fuel Flow Tank Expansion/Contraction Carb Expansion Crankcase Breathing Anti-runon
Image from Haynes Workshop Manual
Note: On 1978 models a secondary charcoal canister was connected between the anti-runon valve and the air vent pipe.
Fuel is drawn from the bottom of the tank (13) by the pump (20) and pushed through the fuel filter (12) and into the carb float chamber.