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 1.7 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
Type4-stroke, side valve type (L-head), single cylinder
Displacement76 cm 3 (4.66 cu-in)
Max. horsepower1.7 HP at 4,000 rpm
Max. torque3.1 Nm (0.32 kg·m, 2.31 ft·lb) at 3,200 rpm
CarburetorPulse pump or float type
Cooling systemForced-air
Ignition systemFlywheel magneto
Lubricating systemSplash system
Starting systemRecoil starter
Stoping systemGround of primary circuit
Fuel usedUnleaded 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 consumption330 g/HPh
PTO shaft rotationCounterclockwise (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
Valve spring free length (INTAKE):20.50 mm (0.8071 in)
Valve spring free length (EXHAUST):20.50 mm (0.8071 in)

Maintenance data

Idle speed1500 ± 110 rpm
Adjust timing ignition
Ignition timing23° B.T.D.C. (Fixed)
Tappet clearance
Intake valve0.10-0.20 mm (0.004-0.008 in)
Exhaust valve0.10-0.20 mm (0.004-0.008 in)
Oil system
Oil type4-stroke “SC, SD, SE class”
Recommended oil10W-30, 10W-40
Oil capacity0.32 L (0.67 US pt)
Ignition system
Spark plug NGK: BM6A
Spark plug gap0.6-0.7 mm (0.024-0.028 in)

Tightening torque specs

Tightening torque specs
Cylinder head7 Nm; 0.7 kg·m; 5.2 ft·lb
Connecting rod7 Nm; 0.7 kg·m; 5.2 ft·lb
Flywheel35 Nm; 3.5 kg·m; 25.8 ft·lb
Drain plug14 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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