Kawasaki FD620D

Kawasaki FD620DThe Kawasaki FD620D is a 0.6 l (617 cc, 37.7 cu-in) V-twin 90° liquid-cooled 4-stroke internal combustion small gasoline motor with horisontal shaft, manufactured by Kawasaki Heavy Industries LTd., for general-purpose applications.

The FD620D has OHV (overhead valve design); cast-iron cylinder liners; twin-barrel carburetor; electromagnetic in-line fuel pump; full transistor ignition system with fixed timing; dual-stage air cleaner; mechanical governor; pressure feed lubrication system with positive displacement pump; 12-volt charging system and electric starter.

The Kawasaki FD620D develops 19 PS (14 kW; 18.7 HP) at 3,600 rpm and 44.6 Nm (4.55 kg·m; 32.91 ft·lb) at 2,200 rpm of torque. Bore and stroke are 76.0 mm (2.99 in) and 68.0 mm (2.68 in), respectively.

General information

Engine Specifications
Type4-stroke, OHV, V-twin 90°
Displacement617 cm 3 (37.7 cu-in)
Max. horsepower19 PS (14 KW; 18.8 HP) at 3,600 rpm
Max. torque (crank PTO)44.6 Nm (4.55 kg·m; 32.91 ft·lb) at 2,200 rpm
CarburetorTwin barrel
Cooling systemLiquid-cooling
Ignition systemTransistorized ignition
Lubricating systemPressure feed lubrication system
Starting systemElectric starter
Charging system12 Volt – 20 or 30 amps with regulator
Fuel usedUnleaded gasoline (octane number 86 or higher)
Cooling systemPressurized forced circulation type

Dimensions and Weight

Length, mm (in)556 (21.9)
Width, mm (in)448 (17.6)
Height, mm (in)624 (24.6)
Dry weight, kg (lb)41.5 (91.5)

Maintenance data

Idle speed1500 ± 100 rpm
Cylinder compression12.0 kg/cm2 (170 psi) at 500 rpm
Valve clearance
Intake valve0.25 mm (0.010 in)
Exhaust valve0.25 mm (0.010 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 (without filter changed)1.5 L (3.17 US pt)
Oil capacity (with filter changed)1.8 L (3.80 US pt)
Oil pressure (min)2.8 kg/cm2 (40 psi)
Cooling system
Coolant capacity2.7 L (0.7 US gallon)
Valve opening temperature63-66° C (145-150° F)
Valve full openning lift7 mm (0.28 in) at 80° C (176° F)
Detect temperature110° ± 2° C (226° ± 36° C)
Ignition system
Spark plugNGK: BMR4A
Spark plug gap0.6-0.7 mm (0.024-0.028 in)
Starter motor
Brush length10 mm (0.40 in), limit: 6.0 mm (0.24 in)
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    • hope you figuerd it all out because its been three dam years.. check the cylinder coil thats my guess bud good luck ..

  1. I am looking for a carburator for a John Deere gator hpx 4×4 with a 617cc liquid cooled Kawasaki vtwin . The stock carb is a mikuni but is bad . Do you carry a replacement carb for this application? Tha ks

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