Kawasaki FE400

Kawasaki FE400The 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

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)
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