Kawasaki FX541V

Kawasaki FX541VThe Kawasaki FX541V is a 0.6 l (603 cc, 36.8 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, commercial mowers, heavy-duty industrial and construction equipment.

The Kawasaki FX541V has V-twin design with vertical PTO shaft. The motor uses overhead V-valves; spherical combustion chamber; cast-iron cylinder liners; metal engine cover with integrated cleanout ports; rotating grass chopper screen. The engine is equipped with electronic spark ignition and internally vented carburetor with fuel shut-off solenoid. The motor uses a high-performance lubrication system and single or multi-stage canister air filter.

The engine has an automatic compression release (ACR) system with recoil or heavy-duty shift-type starter. 13A or 20A charge coils, muffler, oil pressure switches, and shaft variations are available as an option.

Bore and stroke are 73.0 mm (2.87 in) and 72.0 mm (2.83 in), respectively. Compression ratio rating is 8.1:1. The FX541V engine produced 15.4 PS (11.3 KW; 15.1 HP) at 3,600 rpm or 16.7 PS (12.3 KW; 16.5 HP) at 3,600 rpm of maximum horsepower and 39.1 Nm (4.0 kg·m; 28.9 ft·lb) at 2,200 rpm or 43.4 Nm (4.4 kg·m; 32.0 ft·lb) at 2,000 rpm of torque.

General information

Engine Specifications
ModelFX541V
Type4-stroke, OHV, V-twin 90°
Displacement603 cm 3 (36.8 cu-in)
Max. horsepower 15.4 PS (11.3 KW; 15.1 HP) at 3,600 rpm
16.7 PS (12.3 KW; 16.5 HP) at 3,600 rpm
Max. torque (crank PTO) 39.1 Nm (4.0 kg·m; 28.9 ft·lb) at 2,200 rpm
43.4 Nm (4.4 kg·m; 32.0 ft·lb) at 2,000 rpm
CarburetorInternally vented with fuel shut-off solenoid
Cooling systemAir-cooling
Ignition systemElectronic spark ignition
Lubricating systemHigh performance lubrication system
Starting systemHeavy duty shift type starter
Charging system13A or 20A charge coil (option)
Fuel usedUnleaded gasoline (octane number 91 or higher)
Fuel consumption
Cooling systemPressurized forced circulation type

Dimensions and Weight

Kawasaki FX541V
Length, mm (in)468 (18.4)
Width, mm (in)429 (16.9)
Height, mm (in)544 (21.4)
Dry weight, kg (lb)40.7 (89.7)

Tightening torque specs

Tightening torque specs
Cylinder head27.5 Nm; 2.75 kg·m; 20.3 ft·lb
Connecting rod10 Nm; 1.0 kg·m; 7.4 ft·lb
Flywheel56 Nm; 5.7 kg·m; 41.3 ft·lb
Crankcase cover27.5 Nm; 2.75 kg·m; 20.3 ft·lb
Intake manifold9 Nm; 0.9 kg·m; 6.6 ft·lb
Valve clearance lock nut11 Nm; 1.1 kg·m; 8.1 ft·lb

Maintenance data

Engine
Maximum speed3500 ± 100 rpm
Idle speed1500 ± 100 rpm
Cylinder compression4.5 kg/cm2 (64 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 (SJ or higher class)
Recommended oilSAE 10W-40, 10W-30
Oil capacity (with filter changed) With oil filter: 2.1 litre
Without oil filter: 1.8 litre
Ignition system
Spark plugNGK: BPR4ES
Spark plug gap0.7-0.8 mm (0.027-0.031 in)
Ignition coil air gap0.2-0.4 mm (0.008-0.011 in)
Spark plug tightening torque22 Nm; 2.2 kg·m; 16.2 ft·lb
Author: Sergei Wers
About: 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.

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