Honda GX110

Honda GX110 engineThe Honda GX110 is a 0.11 l (107 cc) single-cylinder air-cooled 4-stroke internal combustion small gasoline engine manufactured by Honda Motor Company since 1983 for general-purpose applications.

This engine has an OHV design for increased efficiency and optimal power transfer, sophisticated air intake system, large capacity, multi-chamber exhaust system, heavy-duty recoil starter.

A 57.0 mm (2.24 in) cylinder bore and 42.0 mm (1.65 in) piston stroke give the engine a total of 107 cc of displacement. It produces 2.6 kW (3.5 PS) of horsepower at 4,000 rpm and 6.68 N·m (0.7 kg·m, 5.2 ft·lb) of torque at 2800 rpm with 8.7:1 compression ratio.

General information

Engine Specifications
Model GX110
Type 4-stroke, OHV, single cylinder, inclined by 25°
Displacement 107 cm 3 (6.5 cu-in)
Max. horsepower 3.5 PS (2.6 kW) at 4,000 rpm
Max. torque (crank PTO) 6.68 N·m (0.7 kg·m, 5.2 ft·lb) at 2800 rpm
Carburetor Horizontal type, butterfly valve
Cooling system Forced-air
Ignition system Transistorized magneto ignition
Lubricating system Splash
Starting system Recoil starter
Stoping system Ignition primary circuit ground
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity 2.5 L (0.66 US Gal, 0.55 Imp Gal.)
Fuel consumption 230 g/HPh
PTO shaft rotation Counterclockwise (from PTO shaft side)

Dimensions and Weight

Length, mm (in) 320 (12.6)
Width, mm (in) 345 (13.6)
Height, mm (in) 320 (12.6)
Dry weight, kg (lb) 12.0 (25.6)

Cylinder Block and Head

The Honda GX110 has cast iron cylinder sleeve, ball bearing supported crankshaft, improved piston design, heavy-duty balancer shaft.

Cylinder block
Compression ratio: 8.7
Bore x Stroke 57 mm X 42 mm (2.24 x 1.65 in)
Sleeve internal diameter 57.00 mm (2.04 in)
Piston skirt outer diameter 56.985 mm (2.2435 in)
Number of piston rings (compression / oil): 2 / 1
Cylinder Head
Warpage (limit) 0.10 mm (0.004 in)
Valve Arrangement: OHV
Valves: 2

Service Information

Maximum speed 4000 ± 150 rpm
Idle speed 1400 ± 150 rpm
Cylinder compression 6.0-8.5 kg/cm2 (85-151 psi) at 600 rpm
Oil system
Oil type Honda 4-stroke or an equivalent (SE or SF)
Recommended oil SAE 10W-30
Oil capacity 0.6 P (0.63 US. qt, 0.53 Imp. qt.)
Ignition system
Spark plug NGK: BPR6ES
Spark plug gap 0.7-0.8 mm (0.028-0.031 in)

Engine applications

  • Pressure washers
  • Commercial lawn and garden equipment
  • Tillers / cultivators
  • Generators
  • Construction / industrial equipment
  • Agricultural equipment
  • Small vehicles
  • Water pumps
ATTENTION! Dear visitors, this site is not a trading platform, an official dealer or a spare parts supplier, so we do not have any price lists or spare parts catalogs. We are an information portal and provide the technical specifications of gasoline and diesel engines.

We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

1 Comment

  1. What is the shaft diameter and keyway size for the crankshaft? How much shaft sticks out beyond the crankcase?
    I an searching for a replacement engine.


Leave a Reply

Your email address will not be published.