Complete replacement gas engine for use with Yamaha G21 & G22 Gmax 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: 357 cm3
Bore x Stroke: 85.0 x 63.0 mm (3.34 x 2.48 in.)
Compression Ratio: 8.1 : 1
Compression Pressure (sea level): 785.0 +/- 98.0 kPa (7.85 +/- 0.98 kg/cm2 , 114 psi)
Yamaha #: JR6-19001-00-00
