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Kawasaki FX751V Specifications
The Kawasaki FX751V is a 0.85 l (852 cc, 51.99 cubic inches) V-twin 90 deg 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 engine has V-twin design with vertical PTO shaft. The engine is equipped with overhead V-valves; spherical combustion chamber; cast-iron cylinder liners; metal engine cover with integrated cleanout ports; rotating metal grass chopper screen. The engine is equipped with electronic spark ignition and twin-barrel, internally vented carburetor with fuel shut-off solenoid. The engine is equipped with a high-performance lubrication system with high-efficiency oil cooler and double 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, various oil drains, oil pressure switches, and shaft variations are available as an option. An 84.5 mm (3.33 in) cylinder bore and 76.0 mm (2.99 in) piston stroke provide a total engine displacement of 852 cc (51.99 cubic inches). Compression ratio rating is 8.2:1. The engine has a maximum power of 23.8 PS (17.5 kW; 23.4 HP) at 3,600 rpm or 24.9 PS (18.3 kW; 24.5 HP) at 3,600 rpm of maximum horsepower and 62.0 Nm (6.3 kgm; 45.8 ft-lb) at 2,000 rpm or 60.2 Nm (6.1 kgm; 44.4 ft-lb) at 2,200 rpm of max torque.
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- Kawasaki FX751V Engine Specifications
- Kawasaki FX751V Engine Maintenance
- Kawasaki FX751V Engine Troubleshooting
| General Technical Data |
Engine Model ............... Kawasaki FX751V
Engine Type ............... 4-cycle vertical shaft V-twin OHV air-cooled gasoline engine
Number of Cylinders ............... 2
Cylinder Liners ............... Cast iron
Displacement, cc (cu.in) ............... 852 (52.0)
Cylinder Bore, mm (in) ............... 84.5 (3.33)
Piston Stroke, mm (in) ............... 76.0 (2.99)
Rated Engine Power, hp (kW) ............... 24.5 (18.3)
Rated Engine Speed, rpm ............... 3600
Maximum Torque, Nm (ft-lb) ............... 60.2 (44.4)
Torque Speed, rpm ............... 2200
Compression Ratio ............... 8.2:1
Lubrication System ............... Pressure feed by positive displacement pump
Cooling System ............... Forced-air
Oil Filter ............... Cartridge type full flow
Air Cleaner ............... Dual stage element, heavy duty type
Ignition System ............... Transistorized-flywheel magneto
Starting System ............... Heavy duty shift type electric starter
Electrical System Rating, Volts ............... 12
| Fuel System |
Fuel System ............... Carburetor
Carburetor Type ............... Float type with fixed main jet, two barrel
Fuel Pump ............... Diaphragm type pulse pump
Fuel Type ............... Gasoline (86 or higher)
Governor Type ............... Flyweight all speed governor
| Dimensions and Weight |
Overall Length, mm (in) ............... 480 (18.9)
Overall Width, mm (in) ............... 460 (18.1)
Overall Height, mm (in) ............... 615 (24.2)
Net weight, kg (lbs) ............... 124.1 (54.6)
| Cylinder Block |
Cylinder Inside Diameter (Max), mm (in) ............... 84.55 (3.329)
Cylinder Inside Diameter (Std), mm (in) ............... 84.48-84.50 (3.326-3.327)
Cylinder Bore Out Round, mm (in) ............... 0.05 (0.002)
Crankpin Width, mm (in) ............... 49.0 (1.93)
Connecting Rod Big End Inside Diameter, mm (in) ............... 40.04 (1.576)
Crankpin Outside Diameter, mm (in) ............... 39.94 (1.572)
Crankshaft Journal Diameter, mm (in) ............... 41.90 (1.650)
Connecting Rod Bend, mm (in) ............... 0.15/100 (0.006/3.94)
Connecting Rod Big End Width, mm (in) ............... 22.70 (0.8937)
Connecting Rod Small End Inside Diameter, mm (in) ............... 20.06 (0.7898)
Camshaft Journal Diameter, mm (in) ............... 19.98 (0.7866)
Camshaft Bearing Inside Diameter, mm (in) ............... 20.14 (0.7929)
| Cylinder Head and Valves |
Cylinder Head Warp, mm (in) ............... 0.03 (0.001)
Valve Clearance, mm (in) ............... 0.05-0.10 (0.002-0.004)
Valve Head Thickness, mm (in) ............... 0.4 (0.016)
Valve Stem Runout, mm (in) ............... 0.05 (0.002)
Valve Stem Diameter (Intake), mm (in) ............... 6.94 (0.2732)
Valve Stem Diameter (Exhaust), mm (in) ............... 6.93 (0.2728)
Valve Guide Inside Diameter, mm (in) ............... 7.000-7.015 (0.2756-0.2762)
Valve Seating Surface Angle, degrees ............... 45
Valve Seating Surface Width (Intake), mm (in) ............... 1.1-1.7 (0.043-0.067)
Valve Seating Surface Width (Exhaust), mm (in) ............... 1.0-1.5 (0.039-0.059)
Valve Spring Free Length, mm (in) ............... 38.3 (1.51)
Rocker Arm Push Rod Runout, mm (in) ............... 0.2 (0.008)
Rocker Shaft Outside Diameter, mm (in) ............... 10.91 (0.4295)
Rocker Arm Inside Diameter, mm (in) ............... 11.13 (0.4382)
Cam Lobe Height (Intake), mm (in) ............... 34.30 (1.350)
Cam Lobe Height (Exhaust), mm (in) ............... 35.13 (1.383)
| Pistons and Piston Ring |
Piston Pin Outside Diameter, mm (in) ............... 19.96 (0.7858)
Piston Pin Hole Inside Diameter, mm (in) ............... 20.57 (0.8098)
Piston Diameter, mm (in) ............... 84.24 (3.316)
Top Ring Groove Clearance, mm (in) ............... 0.15 (0.0059)
Second Ring Groove Clearance, mm (in) ............... 0.18 (0.0071)
Top Ring Thickness, mm (in) ............... 1.13 (0.0445)
Second Ring Thickness, mm (in) ............... 1.08 (0.0425)
Top Ring End Gap, mm (in) ............... 0.7 (0.028)
Second Ring End Gap, mm (in) ............... 0.8 (0.031)
Oil Ring End Gap, mm (in) ............... 1.0 (0.039)
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| Engines Technical Specifications |