Complete replacement gas engine for use with Yamaha G16 & G20 models. This engine is a complete assembly with the carburetor (no drive clutch). It is a forced air cooled single cylinder 4-stroke OHV (overhead valve engine). Specifications are as follows:
Displacement: 301 cm3
Bore x Stroke: 78.0 x 63.0 mm (3.07 x 2.48 in.)
Compression Ratio: 8.1 : 1
Compression Pressure (sea level): 1,150 kPa (11.5 kg/cm2, 164 psi)
Yamaha #: JR3-19001-00-00