The Honda G200 K1 is an 197 cc, (12.0 cu·in) natural aspirated single-cylinder four-stroke air-cooled internal combustion small gasoline engine with a horizontal shaft, manufactured by Honda Motor Company since 1977 for general-purpose applications.
The Honda G200 K1 engine has a single-cylinder, side-valve (L-head) design with two valves, a camshaft driven by a single-row chain, and a heavy-duty recoil starter. This engine used a horizontal type carburetor with a butterfly valve, Capacitor Discharge Ignition (CDI) or transistorized magneto ignition, splash type lubricating system, and forced-air cooling system. The engine could be fitted with dual-element type, semi-dry type, or oil-bath type air cleaners. The G200 K1 is equipped with a 4.3 L (1.14 US. gal. 0.95 Imp. gal.) fuel tank.
The G200 K1 engine produced 5.0 PS (3.7 kW; 5.0 HP) at 3,600 rpm of maximum horsepower and 10.4 N·m (1.1 kg·m, 7.7 ft·lb) at 2,500 rpm of peak torque for the CDI version or 5.5 PS (4.0 kW; 5.5 HP) at 3,600 rpm of peak power and 10.8 N·m (1.1 kg·m, 8 ft·lb) at 2,500 rpm of maximum torque for the engine with transistorized magneto ignition.
General information
| Engine Specifications | |
| Engine model | G200 K1 |
| Engine type | 4-stroke, L-head, single-cylinder |
| Displacement | 197 cm3, (12.0 cu·in) |
| Max. horsepower | CDI: 5.0 PS (3.7 kW; 5.0 HP) at 3,600 rpm Magneto ignition: 5.5 PS (4.0 kW; 5.5 HP) at 3,600 rpm |
| Max. torque | Crankshaft PTO: CDI: 10.4 N·m (1.1 kg·m, 7.7 ft·lb) at 2,500 rpm Magneto ignition: 10.8 N·m (1.1 kg·m, 8 ft·lb) at 2,500 rpm Camshaft PTO: CDI: 20.8 N·m (2.12 kg·m, 15.34 ft·lb) at 1,250 rpm Magneto ignition: 21.6 N·m (2.20 kg·m, 15.90 ft·lb) at 1,250 rpm |
| Cooling system | Forced air |
| Air cleaner | Dual element type, semi-dry type, oil-bath type |
| Lubricating system | Splash type |
| Ignition system | Capacitor Discharge Ignition or transistorized magneto ignition |
| Fuel system | Horizontal type carburetor with butterfly valve |
| Fuel consumption | 395 g/kWh |
| Fuel tank capacity | 4.3 L (1.14 US. gal. 0.95 Imp. gal.) |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Starting system | Recoil starter |
| Stoping system | Ignition primary circuit ground |
| Governor | Centrifugal govervor |
| PTO shaft rotation | Counterclockwise (from PTO shaft side) |
Cylinder Block and Head
It has a 67.0 mm (2.64 in) cylinder bore and 56.0 mm (2.2 in) piston stroke. The compression ratio rating is 6.5:1. The crankshaft is mounted on two ball bearings for reduced friction. The piston is fitted with two compression rings and a single oil ring.
| Cylinder block | |
| Compression ratio: | 6.5:1 |
| Cylinder bore: | 67.0 mm (2.64 in) |
| Piston stroke: | 56.0 mm (2.2 in) |
| Cylinder internal diameter (standard): | 67.000 mm (2.6378 in) |
| Piston skirt outer diameter (standard): | 67.000 mm (2.6378 in) |
| Number of piston rings (compression / oil): | 2/1 |
| Connecting rod big end diameter (standard): | 26.000 mm (1.0236 in) |
| Connecting rod small end diameter (standard): | 15.000 mm (0.5906 in) |
| Piston pin diameter: | 15.000 mm (0.5906 in) |
| Side clearance (Top): | 0.01-0.05 mm (0.0004-0.002 in) |
| Side clearance (Second): | 0.01-0.05 mm (0.0004-0.002 in) |
| Side clearance (Oil): | 0.01-0.05 mm (0.0004-0.002 in) |
| Ring end gap (Top): | 0.20-0.40 mm (0.0079-0.0157 in) |
| Ring end gap (Second): | 0.20-0.40 mm (0.0079-0.0157 in) |
| Ring end gap (Oil): | 0.20-0.40 mm (0.0079-0.0157 in) |
| Ring width (Top): | 2.0 mm (0.0787 in) |
| Ring width (Second): | 2.0 mm (0.0787 in) |
| Ring width (Oil): | 3.0 mm (0.1181 in) |
| Crankpin journal diameter: | 26.000 mm (1.0236 in) |
| Crankshaft center distance: | 28 mm (1.1 in) |
| Cylinder head | |
| Valve arrangement: | L-head (side-valve) |
| Valves: | 2 |
| Valve steam diameter (INTAKE): | 7.0 mm (0.2756 in) |
| Valve steam diameter (EXHAUST): | 7.0 mm (0.2756 in) |
| Valve spring free length (INTAKE): | 36.7 mm (1.4449 in) |
| Valve spring free length (EXHAUST): | 36.7 mm (1.4449 in) |
| Camshaft lobe height (INTAKE): | 33.5 mm (1.3189 in) |
| Camshaft lobe height (EXHAUST): | 33.8 mm (1.3307 in) |
| Camshaft journal diameter : | 17.8 mm (0.7008 in) |
Tightening torque
| Tightening torque settings | |
| Connecting rod bolt | 12 Nm; 1.2 kg·m; 8.6 ft·lb |
| Cylinder head bolt | 25 Nm; 2.5 kg·m; 18 ft·lb |
| Flywheel nut | 75 Nm; 7.5 kg·m; 54 ft·lb |
| Oil drain bolt | 20 Nm; 2.0 kg·m; 14.5 ft·lb |
Service Data
The Honda 4-stroke engine oil, API service classification SE class, or equivalent is recommended for the G200 K1. SAE 10W-30 is recommended for general use, refilling oil capacity is 0.7 L (0.74 US. qt, 0.62 Imp. qt.). The recommended spark plug is NGK: B-4H, BR-4HS with 0.6-0.7 mm (0.0236-0.0236 in) spark plug gap.
The valve clearance is 0.08-0.16 mm (0.0031-0.0063 in) for intake valves and 0.16-0.24 mm (0.0063-0.0094 in) for exhaust valves. Standard cylinder compression is 6.0 kg/cm2 (85 psi) at 600 rpm.
| Engine | |
| Maximum speed: | 3,850±150 rpm |
| Idle speed: | 1,400±100 rpm rpm |
| Cylinder compression: | 6.0 kg/cm2 (85 psi) at 600 rpm |
| Valve clearance | |
| Intake valve clearance: | 0.08-0.16 mm (0.0031-0.0063 in) |
| Exhaust valve clearance: | 0.16-0.24 mm (0.0063-0.0094 in) |
| Oil system | |
| Lubrication system: | Splash type |
| Oil type: | SAE 10W-30 or 10W-40 |
| Recommended oil: | Honda 4-stroke or an equivalent (SE or SF) |
| Oil capacity: | 0.7 L (0.74 US. qt, 0.62 Imp. qt.) |
| Fuel system | |
| Type: | Horizontal type carburetor with butterfly valve |
| Main jet: | #75 |
| Float height: | 8.2 mm (0.3228 in) |
| Pilot screw opening: | 2 turns out |
| Ignition system | |
| Type: | Capacitor Discharge Ignition or transistorized magneto ignition |
| Ignition timing: | B.T.D.C. 20° (Fixed) (CDI) B.T.D.C. 24° (Transistorized magneto) |
| Spark plug: | NGK: B-4H, BR-4HS |
| Spark plug gap: | 0.6-0.7 mm (0.0236-0.0276 in) |
| Spark plug torque: | 20 N·m (2 kg·m, 14.7 ft·lb) |
| Ignition coil air gap | 0.2-0.4 mm (0.0079-0.0079 in) |
Applications
| Manufacturer or Brand | Models |
| Generators | |
| Honda | E1500, EG1500, EM1600, EM1800, EM2200 |
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