Honda G35

Honda G35The Honda G35 is a 144 cc (8.8 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 64.0 mm (2.52 in) cylinder bore and 45.0 mm (1.77 in) piston stroke. The compression ratio rating is 6.4:1.

The Honda G35 engine produced 3.5 PS (2.61 kW; 3.5 HP) at 4,000 rpm of maximum output power and 6.5 N·m (0.7 kg·m, 4.8 ft·lb) at 3,000 rpm of peak torque.

The Honda G35 features:

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

General information

Engine Specifications
Engine modelG35
Engine type4-stroke, L-head, single-cylinder
Displacement144 cm3, (8.8 cu·in)
Max. horsepower3.5 PS (2.61 kW; 3.5 HP) at 4,000 rpm
Max. torque6.5 N·m (0.7 kg·m, 4.8 ft·lb) at 3,000 rpm
Cooling systemForced air
Lubricating systemSplash
Ignition systemHigh voltage ignition
Fuel systemHorizontal type carburetor with butterfly valve
Fuel consumption310 g/HPh
Fuel tank capacity2.5 L (0.66 US. gal. 0.55 Imp. gal.)
Fuel usedUnleaded gasoline (octane number 86 or higher)
Starting systemRecoil starter or rope starting
Stoping systemIgnition primary circuit ground
PTO shaft rotationCounterclockwise (from PTO shaft side)
Dimensions (L x W X H)
Dry weight

Cylinder Block and Head

Cylinder block
Compression ratio:6.4:1
Cylinder bore:64.0 mm (2.52 in)
Piston stroke:45.0 mm (1.77 in)
Cylinder internal diameter (standard):64.000 mm (2.5197 in)
Piston skirt outer diameter (standard):63.960 mm (2.5181 in)
Piston pin diameter:15.000 mm (0.5906 in)
Side clearance:0.010 mm (0.0004 in)
Ring end gap:0.200 mm (0.0079 in)
Crankshaft center distance:22.5 mm (0.885 in)
Cylinder head
Valve arrangement:L-head
Valve steam diameter (INTAKE):6.970 mm (0.2744 in)
Valve steam diameter (EXHAUST):6.925 mm (0.2726 in)
Camshaft lobe height (INTAKE):17.030 mm (0.6705 in)
Camshaft lobe height (EXHAUST):17.030 mm (0.6705 in)
Camshaft journal diameter :5.020 mm (0.1976 in)

Tightening torque specs

Tightening torque specs
Carburetor (6 mm nut)8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Flywheel (14 mm nut)60-65 Nm; 6.0-6.5 kg·m; 43.4-47 ft·lb
Cylinder Head (8 x 35 mm flange bolt)20-28 Nm; 2.0-2.8 kg·m; 14.5-20.2 ft·lb
Connecting Rod (6 x 37 mm bolt)9-11 Nm; 0.9-1.1 kg·m; 6.5-8.0 ft·lb

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:0.6 L (0.63 US. qt, 0.53 Imp. qt.)
Ignition system
Type:High voltage ignition
Ignition timing:20°±3° B.T.D.C. (Fixed)
Spark plug:NGK: BR6HS, B6HS
Spark plug gap:0.6-0.7 mm (0.0236-0.0276 in)


Manufacturer or BrandModels
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

ATTENTION! Dear visitors, this is an informational database of technical specifications, we are not a parts supplier or a marketplace.

We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

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