Kawasaki FA76D

Kawasaki FA76DThe Kawasaki FA76D is a 76 cc (4.66 cu.in.) 4-stroke, single-cylinder, air-coolled internal combustion small gasoline engine.

The Kawasaki FA76D engine has a slide-valve (L-head) design and crankshaft made of heat-treated ductile iron integrated with counter-balance weights and camshaft drive gear. The piston is made of hard-chrome plated aluminum alloy and equipped with two compression rings including silicon carbide (on aniron base) plated top ring and one oil control ring. Main bearings are durable bush type, lead bronze sintered alloy plain bearings with steel back metal.

The FA76D engine has a recoil starter, mechanical fly-weight type governor, pulse pump or float type carburetor and magneto ignition system with waterproof molded ignition coil and dustproof breaker point enclosure. The electronic ignition system was available as an option. The Kawasaki FA76D with pulse pump carburetor has sheet metal fuel tank and model with float type carburetor used polyethylene fuel tank.

The Kawasaki FA76D engine a compression ratio rating is 6.4:1, cylinder bore and the piston stroke are 52.0 mm (2.05 in) and 36.0 mm (1.42 in), respectively. The motor produced 1.8 PS (1.3 KW; 1.7 HP) at 4,000 rpm of maximum horsepower and 3.1 Nm (0.32 kg·m, 2.31 ft·lb) at 3,200 rpm of maximum torque.

General information

Engine Specifications
Model FA76D
Type 4-stroke, side valve type (L-head), single cylinder
Displacement 76 cm 3 (4.66 cu-in)
Max. horsepower 1.8 PS (1.3 KW; 1.7 HP) at 4,000 rpm
Max. torque 3.1 Nm (0.32 kg·m, 2.31 ft·lb) at 3,200 rpm
Carburetor Pulse pump or float type
Cooling system Forced-air
Ignition system Flywheel magneto
Lubricating system Splash system
Starting system Recoil starter
Stoping system Ground of primary circuit
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity With pulse pump carburetor: 1.15 L (1.22 US qt)
With float carburetor: 1.7 L (1.8 US qt)
Fuel consumption 330 g/HPh
PTO shaft rotation Counterclockwise (from PTO shaft side)

Cylinder Block and Head

Cylinder block
Compression ratio: 6.4:1
Cylinder bore: 52.0 mm (2.05 in)
Piston stroke: 36.0 mm (1.42 in)
Cylinder internal diameter (max): 52.070 mm (2.05 in)
Number of piston rings (compression / oil): 2/1
Side clearance (Top): 0.150 mm (0.0059 in)
Side clearance (Second): 0.150 mm (0.0059 in)
Side clearance (Oil): 0.150 mm (0.0059 in)
Ring end gap (Top): 0.100 mm (0.0039 in)
Ring end gap (Second): 0.100 mm (0.0039 in)
Ring end gap (Oil): 0.100 mm (0.0039 in)
Number of main bearings: 2
Crankpin journal diameter: 19.950 mm (0.7854 in)
Crankshaft center distance: 18 mm (0.71 in)
Cylinder head
Valves: 2
Valve spring free length (INTAKE): 20.50 mm (0.8071 in)
Valve spring free length (EXHAUST): 20.50 mm (0.8071 in)

Maintenance data

Engine
Idle speed 1500 ± 110 rpm
Adjust timing ignition
Ignition timing 23° B.T.D.C. (Fixed)
Tappet clearance
Intake valve 0.10-0.20 mm (0.004-0.008 in)
Exhaust valve 0.10-0.20 mm (0.004-0.008 in)
Oil system
Oil type 4-stroke “SC, SD, SE class”
Recommended oil 10W-30, 10W-40
Oil capacity 0.32 L (0.67 US pt)
Ignition system
Spark plug NGK: BM6A
Spark plug gap 0.6-0.7 mm (0.024-0.028 in)

Tightening torque specs

Tightening torque specs
Cylinder head 7 Nm; 0.7 kg·m; 5.2 ft·lb
Connecting rod 7 Nm; 0.7 kg·m; 5.2 ft·lb
Flywheel 35 Nm; 3.5 kg·m; 25.8 ft·lb
Drain plug 14 Nm; 1.4 kg·m; 10.3 ft·lb
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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