The compression ratio is 8.5:1. It produces 3.7 kW (5.0 HP) at 3,600 rpm and 10.3 N·m (1.05 kg·m, 7.6 ft·lb) of torque at 2,500 rpm.

The Honda GCV160 engine has transistorized magneto ignition, horizontal type carburetor, and recoil starter. Cylinder bore and piston stroke are 64.0 mm (2.5 in) and 50.0 mm (2.0 in), respectively. The compression ratio rating is 8.5:1. It produces 4.5 PS (3.3 KW; 4.4 HP) at 3,600 rpm and 9.4 Nm (0.96 kg·m; 6.94 ft·lb) of torque at 2,500 rpm.

The GC160 engine produced 5.0 PS (3.7 kW; 5.0 HP) at 3,600 rpm of maximum horsepower and 10.3 N·m (1.1 kg·m, 7.6 ft·lb) at 2,500 rpm of maximum torque.