Kawasaki FE250

Kawasaki FE250The Kawasaki FE250 is a 0.25 l (249 cc, 15.19 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 FE250 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 dual-element air cleaner or oil bath type air cleaner as an option.

A 76.0 mm (2.99 in) cylinder bore and 55.0 mm (2.17 in) piston stroke give the motor a total of 249 cc of displacement. Compression ratio rating is 8.4:1. The Kawasaki FE250 motor produced 8.2 PS (6.0 kW; 8.0 HP) at 3,600 rpm of horsepower and 16.5 Nm (1.68 kg·m; 12.18 ft·lb) at 2,800 rpm of torque. The FE250G – 1/2 cam gear reduction.

General information

Engine Specifications
Model FE250D / FE250G
Type 4-stroke, OHV, single cylinder
Displacement 249 cm 3 (15.2 cu-in)
Max. horsepower 8.2 PS (6.0 KW; 8.0 HP) at 3,600 rpm
Max. torque (crank PTO) 16.5 Nm (1.68 kg·m; 12.18 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 with low oil shut-off system
Starting system Recoil or electric starter
Stoping system Ignition primary circuit ground
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity 5.3 L (5.6 US qt)
Fuel consumption 240 g/HPh
PTO shaft rotation Counterclockwise (from PTO shaft side)

Dimensions and Weight

Kawasaki FE250 D/G
Length 344 mm (13.6 in)
Width 395 mm (15.5 in)
Height 432 mm (17.0 in)
Dry weight 26.8 kg (59.1 lbs)

Tightening torque specs

Tightening torque specs
Connecting rod bolt 20 Nm; 2.0 kg·m; 15 ft·lb
Cylinder head bolt 25 Nm; 2.5 kg·m; 17 ft·lb
Flywheel nut 86 Nm; 8.8 kg·m; 63 ft·lb
Rocker arm lock nut 7 Nm; 0.7 kg·m; 6 ft·lb
Crankcase cover 22 Nm; 2.2 kg·m; 16 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
Valve clearance
Intake valve clearance 0.12 mm (0.0047 in)
Exhaust valve clearance 0.12 mm (0.0047 in)
Oil system
Oil type 4-stroke or an equivalent (SF, SG, SH, or SJ)
Recommended oil SAE 10W-30
Oil capacity 1.1 L (1.2 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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