Kawasaki FH411V

Kawasaki FH411VThe 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
ModelFH411V
Type4-stroke, OHV, V-twin 90°
Displacement472 cm 3 (28.8 cu-in)
Max. horsepower12.1 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
CarburetorFloat type
Cooling systemAir-cooling
Ignition systemFlywheel magneto transistor type
Lubricating systemFull pressure with spin-on oil filter
Starting systemRecoil or electric starter
Charging system12 Volt – 13A with regulator
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel consumption245 g/HPh
Cooling systemPressurized 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 head25 Nm; 2.2 kg·m; 18.5 ft·lb
Connecting rod6 Nm; 0.6 kg·m; 4.4 ft·lb
Flywheel56 Nm; 5.7 kg·m; 41.3 ft·lb
Crankcase cover25 Nm; 2.2 kg·m; 18.5 ft·lb
Intake manifold7 Nm; 0.7 kg·m; 5.2 ft·lb
Valve clearance lock nut7 Nm; 0.7 kg·m; 5.1 ft·lb

Maintenance data

Engine
Maximum speed3500 ± 100 rpm
Idle speed1500 ± 100 rpm
Cylinder compression4.0 kg/cm2 (56 psi) at 500 rpm
Valve clearance
Intake valve0.10-0.15 mm (0.004-0.006 in)
Exhaust valve0.10-0.15 mm (0.004-0.006 in)
Oil system
Oil type4-stroke or an equivalent (SF, SG, SH, or SJ )
Recommended oilSAE 10W-40, 10W-30, 5W-20
Oil capacity (with filter changed)1.8 litre (1.9 US.qt.)
Ignition system
Spark plugCHAMPION: RCJ8Y; NGK: BPMR6A
Spark plug gap0.75 mm (0.029 in)
Spark plug tightening torque22 Nm; 2.2 kg·m; 16.2 ft·lb
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