Small Engine Specs

Specifications for small engines used on a variety of outdoor power equipment


Honda engine G150 and G200 engine specifications including bore, horsepower, torque, compression ratio, ignition system, ignition timing, oil capacity

ModelHonda engine G150Honda engine G200
Type4 stroke, side valve, 1 cylinder4 stroke, side valve, 1 cylinder
Bore and Stroke64 x 45 mm (2.5 x 1.8 in.)67 x 56 mm (2.6 x 2.2 in.)
Total Displacement144 cm^3 (8.8 cm^3 (12.0
Max. Horsepower2.6kW(3.5HP) @ 3600rpm3.7kW(5.0HP) @ 3600rpm
Max TorqueCrankshaft PTO type7 Nm (72kg-cm, 5.2ft-lb.)10 Nm (106kg-cm, 7.7ft-lb.)
Camshaft PTO type14N-m (144kg-cm, 10.4ft-lb.)21Nm (212kg-cm, 15.4ft-lb.)
1/2 reduction type 21Nm (212kg-cm, 15.4ft-lb.)
1/6 reduction type 42Nm (432kg-cm,31.2ft-lb.)62Nm (636kg-cm, 46.2ft-lb.)
Compression Ratio 6.5:1
Fuel Consumption 420g/kWh (310g/HPh, 0.68lb/HPh) 390g/kWh (290g/HPh, 0.64lb/HPh)
Cooling system Forced air cooling Forced air cooling
Ignition system Flywheel magneto or CDI Flywheel magneto or CDI
Ignition timing 20 deg BTDC fixed 20 deg BTDC fixed
Spark Plug Breaker point ignition B4HS or BR4HS (NGK) B4HS or BR4HS (NGK)
CDI Ignition BP4HS-10 or BPR4HS-10 (NGK) BP4HS-10 or BPR4HS-10 (NGK)
Carburetor Horizontal type, butterfly valves Horizontal type, butterfly valves
Governor Centrifugal Centrifugal
Lubrication system Splash type Splash type
Oil capacity 0.7l (0.74qt) 0.7l (0.74qt)
Starting system Recoil starter Recoil starter
Stopping system Ground of primary circuit Ground of primary circuit