Honda GV200

Honda GV200The Honda GV200 is a 197 cc (12.0 cu.in.) 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
ModelGV200
Type4-stroke, side valve type (L-head), single cylinder
Displacement197 cm 3 (12.0 cu-in)
Horsepower5.0 HP (3.7 kW) at 3600 rpm
Torque10.5 Nm (1.05 kg·m, 7.6 ft·lb) at 3,000 rpm
CarburetorHorizontal, butterfly valve
Cooling systemForced-air
Ignition systemTransistorized magneto or CDI
Lubricating systemTrochoid oil pump
Starting systemRecoil starter
Stoping systemGround of primary circuit
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel tank capacity1.8 L (3.8 US gal, 3.2 Imp gal.)
Fuel consumption300 g/HPh
PTO shaft rotationCounterclockwise (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 Stroke67 X 56 mm (2.6 x 2.2 in)
Sleeve internal diameter67.00 mm (2.638 in)
Piston skirt outer diameter66.98 mm (2.637 in)
Number of piston rings (compression / oil):2 / 1
Ring side clearanceTop0.01-0.05 mm (0.0004-0.0020 in)
Second/oil0.01-0.05 mm (0.0004-0.0020 in)
Ring end gapTop/second0.20-0.40 mm (0.008-0.016 in)
Oil0.20-0.40 mm (0.008-0.016 in)
Connecting rod small end ID15.005-15.020 mm (0.5907-0.5913 in)
Crankshaft crank pin outer diameter25.967-25.980 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):INTAKE6.955-6.970 mm (0.2738-0.2744 in)
EXHAUST6.910-6.925 mm (0.2720-0.2726 in)
Cam height:INTAKE33.4-33.6 mm (1.31-1.32 in)
EXHAUST33.7-33.9 mm (1.33-1.34 in)
Valve spring free length:36.7 mm (1.45 in)

MAINTENANCE DATA

Engine
Idle speed1700 ± 150 rpm
Cylinder compression5.0 kg/cm2 at 700 rpm
Valve clearance
Intake valve0.08-0.16 mm (0.003-0.006 in)
Exhaust valve0.16-0.24 mm (0.006-0.009 in)
Carburetor
Main jet#75
Float height6.7-9.7 mm (0.26-0.38 in)
Pilot screw opening1-3/4 turns
Oil system
Oil typeHonda 4-stroke or an equivalent (SG.SF/CC.CD)
Recommended oilSAE 10W-30
Oil capacity0.7 L (1.48 US pt, 1.23 lmp pt)
Ignition system
Ignition timing20 ° B.T.D.C (Fixed)
Spark plug Flywheel magneto type: NGK: BM6A, BMR6A
CDI: NGK: BPM6A, BPMR6A
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
Muffler13-17 Nm; 1.3-1.7 kg·m; 9.4-12 ft·lb
Tappet cover8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Breather cover8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Oil pump cover8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Oil pan8-12 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 stay8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Fan cover8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Intake manifold8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Air cleaner case8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Fuel tank stay8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
Others
5 mm bolts, nuts4-7 Nm; 0.4-0.7 kg·m; 2.9-5.1 ft·lb
6 mm bolts, nuts8-12 Nm; 0.8-1.2 kg·m; 5.8-8.7 ft·lb
8 mm bolts, nuts20-28 Nm; 2.0-2.8 kg·m; 14.5-20.3 ft·lb
10 mm bolts, nuts35-40 Nm; 3.5-4.0 kg·m; 25-29 ft·lb
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