Abstract: A vehicle, such as a motorcycle, can include an exhaust pipe connected to a back or rear side of an engine of the vehicle. An intermediate portion of the exhaust pipe can extend along a side of the engine from a rear portion connected to the rear side of the engine. A front portion of the exhaust pipe can extend from the intermediate portion along a front of the engine, and an exhaust portion can extend from the intermediate portion along a side of the engine opposite to the intermediate portion side.

Abstract: An accumulator type fuel injection nozzle having a relief valve for the control chamber that is controlled by an electromagnet constructed in such a way so as to reduce flux losses to the outer housing of the injection nozzle. In addition, the inlet and return ports of the nozzle are formed in the outer end of the nozzle and extend axially so that the mounting position of the nozzle will not be critical to the fuel connections to the pump and return lines.

Abstract: A vehicle and drive unit therefor including a transversely disposed engine located in an engine compartment. The cylinders are inclined to the rear from a vertical plane at an acute angle and the engine crankshaft drives an accessory shaft that rotates in a plane disposed at an acute angle to the vertical and forwardly of the cylinder axis and at an acute angle to the cylinder axis. Accessories are driven from this accessory shaft as are the front wheel axles which lie on the opposite side of the plane containing the cylinder axis from the output shaft axis. The accessory drive is disposed inwardly of the ends of the engine so as to provide a compact body and the engine body is recessed to receive the accessory drive so as to minimize the distance between the accessory shaft and the engine crankshaft.