Kama GK390

Kama GK390The Kama KG290 is a 389 cc (23.74 cu.in.) single-cylinder air-coolled 4-stroke internal combustion small gasoline engine manufactured by WUXI WORLDBEST KAMA POWER CO., LTD.

The Kama KG390 has OHV design and recoil starter. The KG390 engine compression ratio rating is 8.5:1, cylinder bore and piston stroke are 88.0 mm (3.46 in) and 64.0 mm (2.52 in), respectively.

The Kama KG390 produced 10.5 HP (7.7 kW) of horsepower at 3,600 rpm and 24.0 N·m (2.44 kg·m, 17.7 ft·lb) of torque at 2,500 rpm.

General information

Engine Specifications
Type4-stroke, single cylinder
Displacement389 cm 3 (23.74 cu-in)
Max. horsepower10.5 HP (7.7 kW) at 3600 rpm
Max. torque24.0 N·m (2.44 kg·m, 17.7 ft·lb) at 2,500 rpm
CarburetorHorizontal, butterfly valve
Cooling systemForced-air
Lubricating systemSplash system
Starting systemRecoil starter
Stoping systemGround switch
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel tank capacity6.5 L (1.43 gal.)
PTO shaft rotationClockwise (view from flywheel)

Dimensions and Weight

Kama KG390
Length, mm (in)405 (15.9)
Width, mm (in)450 (17.7)
Height, mm (in)435 (17.1)
Weight, kg (lb)31.0 (68.2)

Maintenance data

Engine speed3,600 ± 150 rpm
Oil system
Oil typeOil for 4-stroke engines (above CC grade)
Recommended oilSAE 10W-30
Oil capacity1.1 l (0.24 gal.)
Ignition system
Spark plugNGK: BP6ES Torch: F6T, T4196J
Spark plug gap0.6-0.7 mm (0.024-0.028 in)
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