Abstract: A breather assembly for a combustion engine which conserves oil by condensing oil vapors from the engine and returning the oil to the crankcase. The breather assembly is mounted to the crankcase cover and includes a drain tube extending into a low pressure area of the crankcase. The breather includes a baffled interior chamber with an inlet opening at its lower end having a valving mechanism biased towards the closed position. Vapor travels through the valve into the chamber and over a baffle wall into an outer annulus. Breather holes at the bottom of the annulus allow gases to escape. Oil is condensed as the vapor travels up the inner chamber. A vacuum created by the crankcase through the drain back tube causes the condensed oil to flow back into the crankcase. In a preferred embodiment, the breather assembly is molded using a polyurethane material.

Abstract: An adapter for converting a condenser into a thermal siphon radiator includes a housing that has an outlet port connected to the fill inlet of the condenser, a side inlet port connected to a conduit and a fill inlet that is sealingly engaged to a radiator cap. The radiator cap has a valve element that seats against a sealing surface in the adapter. The surface is interposed between the inlet and the two ports. In addition, an overflow and return port is positioned above the sealing surface and is connected to a reservoir.

Abstract: An automatic engine control circuit and clutch actuating mechanism includes a primary timer which defines an off time and on time and a starting circuit that includes a second timer mechanism that determines the number of times the engine is cranked the duration in each starting crank. The engine control circuit also has a warm up timer that provides for an engine warm up period before a clutch actuating circuit is actuated to engage a clutch. The clutch actuating mechanism has a shaft with adjustable spring clips that flip limit switches in the clutch actuating circuit. A supplemental timer is operatively connected to the primary timer to allow for warm up periods without engagement of the clutch when the primary timer is in its off mode. Other safety sensors are operatively connected within the circuit to disable the engine if any unsatisfactory conditions are sensed by the circuit.