Kawasaki FH411V

The Kawasaki FH411V is a 0.47 l (472 cc, 28.8 cu-in) V-twin 90° air-cooled 4-stroke internal combustion small gasoline engine with vertical shaft, manufactured by Kawasaki Heavy Industries LTd., for general-purpose applications.

The FH411V has vertical PTO shaft; V-twin 90° design with cast iron cylinder liners and overhead valves (OHV). The engine is equipped with float type carburetor with fixed main jet; pulse type fuel pump and flywheel magneto transistor type ignition system. The Kawasaki FH411V uses a full pressure lubrication system with spin-on oil filter and dual element air cleaner.

Cylinder bore and the piston stroke is 68 mm (2.68 in) and 65 mm (2.56 in), respectively. Compression ratio rating is 8.5:1. The Kawasaki FH411V produced 12.1 PS (8.9 kW; 12.0 HP) at 3,600 rpm and 29.5 Nm (3.01 kg·m; 21.77 ft·lb) at 2,400 rpm of torque.

General information

Engine Specifications
Model	FH411V
Type	4-stroke, OHV, V-twin 90°
Displacement	472 cm 3 (28.8 cu-in)
Max. horsepower	12.1 PS (8.9 KW; 12.0 HP) at 3,600 rpm
Max. torque (crank PTO)	29.5 Nm (3.01 kg·m; 21.77 ft·lb) at 2,400 rpm
Carburetor	Float type
Cooling system	Air-cooling
Ignition system	Flywheel magneto transistor type
Lubricating system	Full pressure with spin-on oil filter
Starting system	Recoil or electric starter
Charging system	12 Volt – 13A with regulator
Fuel used	Unleaded gasoline (octane number 86 or higher)
Fuel consumption	245 g/HPh
Cooling system	Pressurized forced circulation type

Dimensions and Weight

	Kawasaki FH411V
Length, mm (in)	421 (16.6)
Width, mm (in)	350 (13.8)
Height, mm (in)	325 (12.8)
Dry weight, kg (lb)	32 (70.5)

Tightening torque specs

Tightening torque specs
Cylinder head	25 Nm; 2.2 kg·m; 18.5 ft·lb
Connecting rod	6 Nm; 0.6 kg·m; 4.4 ft·lb
Flywheel	56 Nm; 5.7 kg·m; 41.3 ft·lb
Crankcase cover	25 Nm; 2.2 kg·m; 18.5 ft·lb
Intake manifold	7 Nm; 0.7 kg·m; 5.2 ft·lb
Valve clearance lock nut	7 Nm; 0.7 kg·m; 5.1 ft·lb

Maintenance data

Engine
Maximum speed	3500 ± 100 rpm
Idle speed	1500 ± 100 rpm
Cylinder compression	4.0 kg/cm2 (56 psi) at 500 rpm
Valve clearance
Intake valve	0.10-0.15 mm (0.004-0.006 in)
Exhaust valve	0.10-0.15 mm (0.004-0.006 in)
Oil system
Oil type	4-stroke or an equivalent (SF, SG, SH, or SJ )
Recommended oil	SAE 10W-40, 10W-30, 5W-20
Oil capacity (with filter changed)	1.8 litre (1.9 US.qt.)
Ignition system
Spark plug	CHAMPION: RCJ8Y; NGK: BPMR6A
Spark plug gap	0.75 mm (0.029 in)
Spark plug tightening torque	22 Nm; 2.2 kg·m; 16.2 ft·lb