Kawasaki FD680V

Kawasaki FD680VThe Kawasaki FD680V is a 0.68 l (675 cc, 41.19 cu-in) V-twin 90° liquid-cooled 4-stroke internal combustion small gasoline motor with vertical shaft, manufactured by Kawasaki Heavy Industries LTd., for general-purpose applications.

The FD680V has OHV (overhead V-valves) design; cast-iron cylinder liners; twin-barrel, internally vented carburetor with fuel shut-off solenoid; electronic spark ignition system. The Kawasaki FD680V uses a full pressure lubrication system with spin-on oil filter and dual element air cleaner.

The Kawasaki FD680V develops 23.4 PS (17.2 KW; 23.0 HP) at 3,600 rpm and 54.0 Nm (5.5 kg·m; 39.8 ft·lb) at 2,400 rpm of torque. It has a 72.5 mm (2.85 in) cylinder bore and 76 mm (2.99 in) piston stroke. Compression ratio rating is 8.5:1.

General information

Engine Specifications
ModelFD680V
Type4-stroke, OHV, V-twin 90°
Displacement675 cm 3 (41.19 cu-in)
Max. horsepower23.4 PS (17.2 KW; 23.0 HP) at 3,600 rpm
Max. torque (crank PTO)54.0 Nm (5.5 kg·m; 39.8 ft·lb) at 2,400 rpm
CarburetorTwin barrel, internally vented
Cooling systemLiquid-cooling
Ignition systemElectronic spark
Lubricating systemPressure feed lubrication system
Starting systemElectric starter
Charging systemHigh Amp charging coil
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel consumption245 g/HPh
Cooling systemPressurized forced circulation type

Dimensions and Weight

Kawasaki FD680V
Length, mm (in)563 (22.2)
Width, mm (in)424 (16.7)
Height, mm (in)431 (17.0)
Dry weight, kg (lb)48.0 (105.8)

Tightening torque specs

Tightening torque specs
Cylinder head32 Nm; 3.2 kg·m; 23.6 ft·lb
Connecting rod9.8 Nm; 1.0 kg·m; 7.2 ft·lb
Flywheel56 Nm; 5.6 kg·m; 41 ft·lb
Crankcase cover21 Nm; 2.1 kg·m; 15.5 ft·lb
Intake manifold6 Nm; 6.0 kg·m; 4.4 ft·lb
Oil drain plug7 Nm; 0.7 kg·m; 5.2 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 compression7.0 kg/cm2 (99 psi) at 500 rpm
Valve clearance
Intake valve0.15 mm (0.006 in)
Exhaust valve0.15 mm (0.006 in)
Oil system
Oil type4-stroke or an equivalent (SC, SD, SE, SF, SG, or SH)
Recommended oilSAE 10W-40, 10W-30, 5W-20
Oil capacity (with filter changed)2.0-2.3 L
Ignition system
Spark plugNGK: BPR2ES
Spark plug gap0.75 mm (0.029 in)
Spark plug tightening torque25 Nm; 2.5 kg·m; 18.4 ft·lb
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

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