Kawasaki FR730V (726 cc, 22.2/24.0 HP) vertical V-Twin Engine Specs & Review

Kawasaki FR730V Engine Specs

The Kawasaki FR730V is a 0.73 liter 44.3 cu-in (726 cc) V-twin 90° air-cooled 4-stroke internal combustion small gasoline engine with a vertical shaft, made by Kawasaki Heavy Industries LTd., for general-purpose applications, such as lawn and garden tractors, residential zero-turn mowers.

The Kawasaki FR730V engine is fitted with an internally vented carburetor, a fuel shut-off solenoid, and an electronic spark ignition system. The motor uses a high-performance lubrication system and single-stage air filter.

 The Kawasaki FR730V engine delivered 22.6 PS (16.6 kW; 22.2 HP) at 3,600 rpm or 24.3 PS (17.9 kW; 24.0 HP) at 3,600 rpm and of maximum HP and 54.3 Nm (5.5 kg·m; 40.0 ft·lb) at 2,000 rpm or 53.9 Nm (5.5 kg·m; 39.8 ft·lb) at 2,200 rpm of torque.

The Kawasaki FR730V engine has a 78.0 mm (3.07 in) cylinder bore and a 76.0 mm (2.99 in) piston stroke. The Kawasaki FR730V engine compression ratio rating is 8.2:1.

The Kawasaki FR730V engine has 90 degrees V-twin design with a vertical PTO shaft, cast iron cylinder liners, overhead valves, a spherical combustion chamber, and a rotating metal grass chopper screen. 

The Kawasaki FR730V engine has a Bendix-type electric starter with an automatic compression release system. 13A or 20A charge coils are available as an option.

Kawasaki FR730V Engine Specs

Kawasaki FR730V (726 cc, 22.2/24.0 HP) vertical V-Twin Engine Specs

Engine Specifications

Model FR730V
Type 4-stroke, OHV, V-twin 90°
Displacement 726 cm 3 (44.3 cu-in)
Max. horsepower 22.6 PS (16.6 KW; 22.2 HP) at 3,600 rpm
24.3 PS (17.9 KW; 24.0 HP) at 3,600 rpm
Max. torque (crank PTO) 54.3 Nm (5.5 kg·m; 40.0 ft·lb) at 2,000 rpm
53.9 Nm (5.5 kg·m; 39.8 ft·lb) at 2,200 rpm
Carburetor Internally vented with fuel shut-off solenoid
Cooling system Air-cooling
Ignition system Electronic spark ignition
Lubricating system Full pressure with spin-on oil filter
Starting system Bendix type starter
Charging system 13A or 20A charge coil (option)
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel consumption 245 g/HPh
Cooling system Pressurized forced circulation type

Tightening torque specs

Cylinder head 46 Nm; 4.6 kg·m; 33.9 ft·lb
Connecting rod 10 Nm; 1.0 kg·m; 7.4 ft·lb
Flywheel 56 Nm; 5.7 kg·m; 41.3 ft·lb
Crankcase cover 27.5 Nm; 2.75 kg·m; 20.3 ft·lb
Intake manifold 9 Nm; 0.9 kg·m; 6.6 ft·lb
Oil drain plug 7 Nm; 0.7 kg·m; 5.2 ft·lb
Valve clearance lock nut 11 Nm; 1.1 kg·m; 8.1 ft·lb

Maintenance Data

Maximum speed 3500 ± 100 rpm
Idle speed 1500 ± 100 rpm
Cylinder compression 4.5 kg/cm2 (64 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 (SJ or higher class)
Recommended oil SAE 10W-40, 10W-30
Oil capacity (with filter changed) With oil filter: 2.1 litre
Without oil filter: 1.8 litre
Ignition system
Spark plug NGK: BPR4ES
Spark plug gap 0.7-0.8 mm (0.027-0.031 in)
Ignition coil air gap 0.2-0.4 mm (0.008-0.011 in)
Spark plug tightening torque 22 Nm; 2.2 kg·m; 16.2 ft·lb

Dimensions and Weight

Length, mm (in) 501 (19.7)
Width, mm (in) 466 (18.3)
Height, mm (in) 392 (15.4)
Dry weight, kg (lb) 40.0 (88.2)

Also Check:

Final Words

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