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| Home / Small Engines / Honda Engines / Honda G100 |
Honda G100 Specifications
| Engine Model: Honda G100 |
| Engine Type: 4-cycle 1-cylinder air-cooled gasoline engine |
| Displacement (K1/K2): 5.1 cu.in (83 cc) / 6 cu.in (98 cc) |
| Engine Power (K1/K2): 2.2 Hp (1.6 kW) / 2.5 Hp (1.9 kW) |
| Carburetor Type: Horizontal, butterfly valve |
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| General Technical Data |
Engine Model .............. Honda G100
Engine Type .............. 4-cycle side valve 1-cylinder air-cooled small gasoline engine
Number of Cylinders .............. Single
Displacement (G100K1), cu.in (cc) .............. 5.06 (83)
Displacement (G100K2), cu.in (cc) .............. 6.00 (98)
Engine Bore (G100K1), in (mm) .............. 1.89 (48.0)
Engine Bore (G100K2), in (mm) .............. 2.06 (52.0)
Piston Stroke, in (mm) .............. 1.82 (46.0)
Rated Engine Power (G100K1), hp (kW) .............. 2.2 (1.64)
Rated Engine Power (G100K2), hp (kW) .............. 2.5 (1.85)
Rated Engine Speed, rpm .............. 4200
Maximum Torque (G100K1), Nm (ft-lbs) .............. 3.3 (2.4)
Maximum Torque (G100K2), Nm (ft-lbs) .............. 3.5 (2.5)
Torque Speed, rpm .............. 3000
Compression Ratio .............. 6.5:1
PTO Shaft Rotation .............. Counterclockwise (from PTO shaft side)
Valve Arrangement .............. L-head
Lubrication System .............. Splash type
Air Cleaner .............. Oil bath
Cooling System .............. Forced air
Ignition System .............. Flywheel magneto
Starter Type .............. Recoil
| Fuel System |
Fuel System Type .............. Carburetor
Carburetor Type .............. Horizontal with butterfly valve
Fuel Consumption, g/HPh .............. 320
Fuel Tank Capacity, qts (L) .............. 1.5 (1.4)
Fuel Type .............. Gasoline (66 or higher)
| Dimensions and Weight |
Overall Length, in (mm) .............. 10.8 (275)
Overall Width, in (mm) .............. 10.6 (270)
Overall Height, in (mm) .............. 13.6 (345)
Dry Weight, lbs (kg) .............. 19.2 (8.7)
| Cylinder Block |
Cylinder Bore Inside Diameter (G100K1, Std), in (mm) .............. 1.89 (48.00)
Cylinder Bore Inside Diameter (G100K1, Wear Limit), in (mm) .............. 1.8985 (48.055)
Cylinder Bore Inside Diameter (G100K2, Std), in (mm) .............. 2.06 (52.00)
Cylinder Bore Inside Diameter (G100K2, Wear Limit), in (mm) .............. 2.0577 (52.060)
Piston Skirt Outside Diameter (G100K1), in (mm) .............. 1.8503 (47.995)
Piston Skirt Outside Diameter (G100K2), in (mm) .............. 2.0549 (51.990)
Connecting Rod Small End Inside Diameter (Std), in (mm) .............. 0.393 (10.00)
Connecting Rod Small End Inside Diameter (Wear Limit), in (mm) .............. 0.397 (10.05)
Connecting Rod Big End Inside Diameter (Std), in (mm) .............. 0.708 (18.00)
Connecting Rod Big End Inside Diameter (Wear Limit), in (mm) .............. 0.713 (18.04)
Crank Pin Outside Diameter, in (mm) .............. 0.707 (17.98)
Top Ring Groove Side Clearance, in (mm) .............. 0.0004-0.002 (0.01-0.05)
Second Ring Groove Side Clearance, in (mm) .............. 0.0004-0.002 (0.01-0.05)
Oil Ring Groove Side Clearance, in (mm) .............. 0.0004-0.002 (0.01-0.05)
Top Ring End Gap, in (mm) .............. 0.009 (0.25)
Second Ring End Gap, in (mm) .............. 0.009 (0.25)
Oil Ring End Gap, in (mm) .............. 0.017 (0.45)
| Cylinder Head and Valves |
Number of Valves .............. 2
Cylinder Head (Max Out of Flatness), in (mm) .............. 0.004 (0.10)
Intake Valve Clearance, in (mm) .............. 0.0031-0.0063 (0.08-0.16)
Exhaust Valve Clearance, in (mm) .............. 0.0031-0.0063 (0.08-0.16)
Intake Valve Stem Outside Diameter (Std), in (mm) .............. 0.2161 (5.490)
Intake Valve Stem Outside Diameter (Wear Limit), in (mm) .............. 0.2154 (5.450)
Exhaust Valve Stem Outside Diameter (Std), in (mm) .............. 0.2143 (5.445)
Exhaust Valve Stem Outside Diameter (Wear Limit), in (mm) .............. 0.2134 (5.40)
Valve Guide Inside Diameter (Intake/Exhaust), in (mm) .............. 0.2165 (5.50)
Valve Spring Free Length, in (mm) .............. 1.066 (27.10)
Valve Seat Width (Intake/Exhaust), in (mm) .............. 0.028 (0.70)
Camshaft Journal Diameter, in (mm) .............. 0.4796 (12.184)
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