Kawasaki FG150

The Kawasaki FG150 is a 151 cc (9.21 cu-in) single-cylinder air-cooled 4-stroke internal combustion small gasoline engine with horizontal shaft manufactured by Kawasaki Heavy Industries LTd., for general-purpose applications.

The FG150 engine has a cast-iron cylinder liner; two main ball bearings; float type carburetor with fixed main jet; flywheel magneto transistor type ignition system; mechanical governor and recoil starter with an automatic compression release. The engine uses a dual-element air cleaner and splashes lubrication system.

Bore and stroke are 64.0 mm (2.52 in) and 47.0 mm (1.85 in), respectively. Compression ratio rating is 6.4:1. The Kawasaki FG150 motor produced 3.7 PS (2.7 kW; 3.6 HP) at 4,000 rpm of horsepower and 7.0 Nm (0.71 kg·m; 5.17 ft·lb) at 2,800 rpm of torque. The FG150G – 1/2 cam gear reduction.

General information

Engine Specifications
Model	FG150D / FG150G
Type	4-stroke, single cylinder
Displacement	151 cm 3 (9.21 cu-in)
Max. horsepower	3.7 PS (2.7 KW; 3.6 HP) at 4,000 rpm
Max. torque (crank PTO)	7.0 Nm (0.71 kg·m; 5.17 ft·lb) ta 2,800 rpm
Carburetor	Float type with fixed main jet
Cooling system	Forced-air
Ignition system	Flywheel magneto transistor type
Lubricating system	Splash
Starting system	Recoil starter
Stoping system	Ignition primary circuit ground
Fuel used	Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity	3.0 L (3.2 US qt)
Fuel consumption	315 g/HPh
PTO shaft rotation	Counterclockwise (from PTO shaft side)

Dimensions and Weight

	Kawasaki FG150 D/G
Length	312 mm (12.3 in)
Width	319 mm (12.6 in)
Height	370 mm (14.6 in)
Dry weight	14.3 kg (31.5 lbs)

Service Information

Engine
Maximum speed	4,000 ± 100 rpm
Idle speed	1,600 ± 150 rpm
Oil system
Oil type	4-stroke or an equivalent (SF, SG, SH, or SJ)
Recommended oil	SAE 10W-30
Oil capacity	0.5 L (0.5 US. qt)
Ignition system
Spark plug	NGK: BP4HS
Spark plug gap	0.7-0.8 mm (0.028-0.031 in)