Powerful 675 cc four-stroke engine is mounted longitudinally in the frame, allowing direct driveshaft alignment to the front and rear wheels for improved drivetrain efficiency. Liquid cooling provides consistent engine operating temperature in extreme conditions for maximum power output and long engine life. The camshaft is located adjacent to the cylinder head, reducing engine height. Together with the semi-dry sump, engine height is further reduced for a low centre of gravity and excellent handling. Four-valve cylinder head with two short pushrods provides a broad powerband for optimum performance and engine efficiency. Dual-plug cylinder head uses two sparkplugs that fire together to help ensure clean, fast, thorough combustion. Remote-mounted fuel pump with internal fuel reservoir maintains consistent fuel-injection performance in rough and varying terrain.