Kawasaki FE400

The Kawasaki FE400 is a 0.4 l (401 cc, 24.47 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 FE400 engine has an OHV (overhead valve) design; cast iron cylinder liner; reciprocating balancer; float type carburetor with fixed main jet; flywheel magneto transistor type ignition system; mechanical governor and recoil starter with automatic compression release (electric starter was available as an option). The engine uses full pressure lubrication with spin-on oil filter and low oil shut-off system; dual-element air cleaner or oil bath type air cleaner as an option. The Kawasaki FE400 engine uses hydraulic lash adjuster, so valve adjustment unnecessary.

An 87.0 mm (3.43 in) cylinder bore and 67.5 mm (2.66 in) piston stroke give the motor a total of 401 cc of displacement. Compression ratio rating is 8.3:1. The Kawasaki FE400 motor produced 13.2 PS (9.7 kW; 13.0 HP) at 3,600 rpm of horsepower and 26.5 Nm (2.7 kg·m; 19.56 ft·lb) at 2,800 rpm of torque. The FE400G – 1/2 cam gear reduction.

General information

Engine Specifications
Model	FE400D / FE400G
Type	4-stroke, OHV, single cylinder
Displacement	401 cm 3 (24.5 cu-in)
Max. horsepower	13.2 PS (9.7 KW; 13.0 HP) at 3,600 rpm
Max. torque (crank PTO)	26.5 Nm (2.7 kg·m; 19.56 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	Pressurized lubrication with oil filter
Starting system	Recoil or electric starter
Stoping system	Ignition primary circuit ground
Fuel used	Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity	6.4 L (6.8 US qt)
Fuel consumption	240 g/HPh
PTO shaft rotation	Counterclockwise (from PTO shaft side)

Dimensions and Weight

	Kawasaki FE400 D/G
Length	378 mm (14.9 in)
Width	422 mm (16.6 in)
Height	459 mm (18.7 in)
Dry weight	34.4 kg (76.1 lbs)

Tightening torque specs

Tightening torque specs
Connecting rod bolt	23 Nm; 2.3 kg·m; 17 ft·lb
Cylinder head bolt	25 Nm; 2.5 kg·m; 17 ft·lb
Flywheel nut	137 Nm; 14.0 kg·m; 101 ft·lb
Crankcase cover	31 Nm; 3.2 kg·m; 23 ft·lb
Oil drain plug	32 Nm; 3.3 kg·m; 24 ft·lb
Spark plug	23 Nm; 2.3 kg·m; 17 ft·lb

Service Information

Engine
Maximum speed	4,000 ± 100 rpm
Idle speed	1,300 ± 150 rpm
Cylinder compression	3.0-4.0 kg/cm2 (42-57 psi) at 600 rpm
Oil system
Oil type	4-stroke or an equivalent (SF, SG, SH, or SJ)
Recommended oil	SAE 10W-30
Oil capacity	1.3 L (1.4 US. qt)
Ignition system
Spark plug	NGK: BP5ES
Spark plug gap	0.7-0.8 mm (0.028-0.031 in)
Ignition coil air gap	0.3 mm (0.012 in)