Honda

Honda GX660

GX660

Overview

688cc 90-degree V-twin OHV commercial engine, the mid-output member of Honda’s horizontal V-twin range. Used on commercial generators, mowers, and pressure washers. Maximum power 21.5 hp at 3600 rpm; electric start standard.

Specifications

SeriesGX Commercial V-Twin
Displacement (cc)688
Cylinders2 (90-degree V-twin)
Net Power (hp @ rpm)21.5 @ 3600
Net Power (kW @ rpm)16.0 @ 3600
Max Torque (Nm @ rpm)48.3 @ 2500
Bore x Stroke (mm)78 x 72
Compression Ratio9.3:1
Oil Capacity (qt)1.59 (without filter), 1.80 (with filter)
Fuel TypeUnleaded gasoline (octane 86+)
Starting SystemElectric
Dry Weight (kg)44.0
Dry Weight (lb)96.8
Shaft TypeHorizontal