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
Author:Sergei WersAbout: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.
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. 
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