The gear reduction also allows for the use of smaller cam drive gears - the result is a more compact head. The cam drive gears and chain are located under the powerhead where they run in an oil bath for superior lubrication. The location also lowers the engine center of gravity. A hydraulic cam chain tensioner is included to keep the cam chain properly adjusted for maintenance-free service. The fuel system consists of a diaphragm pump driven from the cam drive, and a water-cooled fuel chiller is incorporated ahead of the pressure regulator.
Cool fuel is less subject to percolation and vapor lock problems.
Fuel-related components are located on the intake manifold, the coolest location on the engine. Additional water-cooled components include the vapor separator, voltage regulator and the fuel rail at the injectors. PIKE 17 . Each injector has four orifices to distribute the atomized fuel more evenly in the combustion chamber. The sequential, multi-port injection system puts fuel into the manifold at the intake valve at the precise time to ensure optimum acceleration and maximum fuel economy.