Honda G41

Honda G41The Honda G41 is a 170 cc (10.37 cu·in) natural aspirated single-cylinder four-stroke air-cooled internal combustion small gasoline engine with a horizontal shaft, manufactured by Honda Motor Company for general-purpose applications.

It has a 66.0 mm (2.6 in) cylinder bore and 50.0 mm (1.97 in) piston stroke.

The G41 engine produced 4.5 PS (3.31 kW; 4.4 HP) at 4,000 rpm of maximum horsepower.

The Honda G41 features:

  • L-head design
  • High voltage ignition system
  • Horizontal type carburetor with butterfly valve
  • Splash type lubrication system
  • Recoil starter

General information

Engine Specifications
Engine model G41
Engine type 4-stroke, L-head, single-cylinder
Displacement 170 cm3, (10.37 cu·in)
Max. horsepower 4.5 PS (3.31 kW; 4.4 HP) at 4,000 rpm
Max. torque -m
Cooling system Forced air
Lubricating system Splash
Ignition system High voltage ignition
Fuel system Horizontal type carburetor with butterfly valve
Fuel consumption 300 g/HPh
Fuel tank capacity 3.5 L (0.92 US. gal. 0.77 Imp. gal.)
Fuel used Unleaded gasoline (octane number 86 or higher)
Starting system Recoil starter
Stoping system Ignition primary circuit ground
PTO shaft rotation Counterclockwise (from PTO shaft side)
Dimensions (L x W X H) 415 x 318 x 405 mm (16.3 x 12.5 x 15.9 in)
Dry weight 16.0 kg (35.3 lbs)

Cylinder Block and Head

Cylinder block
Compression ratio:
Cylinder bore: 66.0 mm (2.6 in)
Piston stroke: 50.0 mm (1.97 in)

Service Data

Cylinder compression: 5.3 kg/cm2 (75 psi)
Oil system
Lubrication system: Splash
Oil type: Honda 4-stroke or an equivalent
Recommended oil: SAE 10W-30
Oil capacity: 0.8 L (0.85 US. qt, 0.7 Imp. qt.)
Ignition system
Type: High voltage ignition
Spark plug: NGK: B-4H
Spark plug gap: 0.6-0.7 mm (0.0236-0.0276 in)

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