Fuel Injected Models

During engine idle, crankcase fumes and vapors flow from left rocker cover to idling speed air distributor. Vapors are then mixed with fresh air from air intake horn and are passed through tubes to intake manifold. At low and medium speeds, when crankcase is subject to vacuum, engine is supplied with air through tube in right hand rocker cover. At higher speeds, fumes pass from right rocker cover, into air cleaner and then into engine to be burned.