Honda GV200

Honda GV200The Honda GV200 is a 197 cc (12.0 single-cylinder air-coolled 4-stroke internal combustion small gasoline engine with vertical shaft manufactured by Honda Motor Company.

The Honda GV200 engine has a slide valve (L-head) design and camshaft driven by a single row chain driven by the crankshaft. The engine has an electric or recoil starter, horizontal carburetor with butterfly valve and transistorized magneto or capacitor discharge ignition (CDI) ignition system.

The GV200 engine a compression ratio rating is 6.5:1, cylinder bore and piston stroke are 67.0 mm (2.64 in) and 56.0 mm (2.20 in), respectively.

The Honda GV200 produced 5.0 HP (3.7 kW) at 3600 rpm of maximum horsepower and 10.5 Nm (1.05 kg·m, 7.6 ft·lb) at 3,000 rpm of torque.

General information

Engine Specifications
Model GV200
Type 4-stroke, side valve type (L-head), single cylinder
Displacement 197 cm 3 (12.0 cu-in)
Horsepower 5.0 HP (3.7 kW) at 3600 rpm
Torque 10.5 Nm (1.05 kg·m, 7.6 ft·lb) at 3,000 rpm
Carburetor Horizontal, butterfly valve
Cooling system Forced-air
Ignition system Transistorized magneto or CDI
Lubricating system Trochoid oil pump
Starting system Recoil starter
Stoping system Ground of primary circuit
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity 1.8 L (3.8 US gal, 3.2 Imp gal.)
Fuel consumption 300 g/HPh
PTO shaft rotation Counterclockwise (from PTO shaft side)

Cylinder Block and Head

The piston has two compression rings and one oil ring. Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency.

Cylinder block
Compression ratio: 6.5:1
Bore x Stroke 67 X 56 mm (2.6 x 2.2 in)
Sleeve internal diameter 67.00 mm (2.638 in)
Piston skirt outer diameter 66.98 mm (2.637 in)
Number of piston rings (compression / oil): 2 / 1
Ring side clearance Top 0.01-0.05 mm (0.0004-0.0020 in)
Second/oil 0.01-0.05 mm (0.0004-0.0020 in)
Ring end gap Top/second 0.20-0.40 mm (0.008-0.016 in)
Oil 0.20-0.40 mm (0.008-0.016 in)
Connecting rod small end ID 15.005-15.020 mm (0.5907-0.5913 in)
Crankshaft crank pin outer diameter 25.967-25.980 mm (1.0223-1.0228 in)
Cylinder Head
Warpage (limit) 0.10 mm (0.004 in)
Valve Arrangement: Side valve (L-head)
Valves: 2
Stem outer diameter (standard): INTAKE 6.955-6.970 mm (0.2738-0.2744 in)
EXHAUST 6.910-6.925 mm (0.2720-0.2726 in)
Cam height: INTAKE 33.4-33.6 mm (1.31-1.32 in)
EXHAUST 33.7-33.9 mm (1.33-1.34 in)
Valve spring free length: 36.7 mm (1.45 in)


Idle speed 1700 ± 150 rpm
Cylinder compression 5.0 kg/cm2 at 700 rpm
Valve clearance
Intake valve 0.08-0.16 mm (0.003-0.006 in)
Exhaust valve 0.16-0.24 mm (0.006-0.009 in)
Main jet #75
Float height 6.7-9.7 mm (0.26-0.38 in)
Pilot screw opening 1-3/4 turns
Oil system
Oil type Honda 4-stroke or an equivalent (SG.SF/CC.CD)
Recommended oil SAE 10W-30
Oil capacity 0.7 L (1.48 US pt, 1.23 lmp pt)
Ignition system
Ignition timing 20 ° B.T.D.C (Fixed)
Spark plug Flywheel magneto type: NGK: BM6A, BMR6A
Spark plug gap Flywheel magneto type: 0.6-0.7 mm (0.024-0.028 in)
CDI: 0.9-1.0 mm (0.035-0.039 in)

Tightening torque specs

Tightening torque specs
Cylinder head (8 mm bolt) 24-26 Nm; 2.4-2.6 kg·m; 17-19 ft·lb
Oil drain (12 mm bolt) 20 Nm; 2.0 kg·m; 14 ft·lb
Connecting rod lower cap (7 mm bolt) 11-13 Nm; 1.1-1.3 kg·m; 8.0-9.4 ft·lb
Flywheel (14 mm nut) 70-80 Nm; 7.8-8.0 kg·m; 51-58 ft·lb
Muffler 13-17 Nm; 1.3-1.7 kg·m; 9.4-12 ft·lb
Tappet cover 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Breather cover 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Oil pump cover 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Oil pan 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Ignition coil (6 mm) 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
CDI unit stay 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Fan cover 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Intake manifold 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Air cleaner case 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Fuel tank stay 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
5 mm bolts, nuts 4-7 Nm; 0.4-0.7 kg·m; 2.9-5.1 ft·lb
6 mm bolts, nuts 8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
8 mm bolts, nuts 20-28 Nm; 2.0-2.8 kg·m; 14.5-20.3 ft·lb
10 mm bolts, nuts 35-40 Nm; 3.5-4.0 kg·m; 25-29 ft·lb
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1 Comment

  1. Hallo, I’m trying to purchase a replacement carburetor, but can’t anywhere a item number to get the correct device or a working alternative. Can someone help?
    Franz Dopierala

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