Subaru-Robin EC08D

Subaru-Robin EC08DThe Subaru-Robin EC08D is a 78.5 cc (4.82 cu·in) natural aspirated single-cylinder two-stroke air-cooled internal combustion small gasoline engine with a horizontal shaft.

The Subaru-Robin EC08D engine has a single-cylinder, float type carburetor, flywheel magneto type ignition system (contactless magneto type ignition available as an option), and recoil starter. The engine is fitted with a semi-wet type air cleaner. The EC08D is equipped with a 1.5 L (0.4 US. gal. 0.33 Imp. gal.) fuel tank.

Cylinder bore and piston stroke are 50.0 mm (1.97 in) and 40.0 mm (1.57 in), respectively. The Subaru-Robin EC08D engine produced 3.3 PS (2.4 kW; 3.2 HP) at 5,500 rpm of maximum output power and 5.0 N·m (0.5 kg·m, 3.7 ft·lb) at 3,600 rpm of peak torque.

General information

Engine Specifications
Engine model EC08D
Engine type 2-stroke, Piston Valve Type, single-cylinder
Displacement 78.5 cm3, (4.82 cu·in)
Max. horsepower 3.3 PS (2.4 kW; 3.2 HP) at 5,500 rpm
Max. torque 5.0 N·m (0.5 kg·m, 3.7 ft·lb) at 3,600 rpm
Cooling system Forced air
Air cleaner Semi-wet type
Lubricating system Fuel-lubricant Mixture Type
Ignition system Flywheel Magneto Type (Contactless Magneto Type available as option)
Fuel system Float type carburetor
Fuel consumption 380 g/HPh
Fuel tank capacity 1.5 L (0.4 US. gal. 0.33 Imp. gal.)
Fuel used Unleaded gasoline (octane number 86 or higher)
Starting system Recoil starter
Governor Centrifugal flyweight type
PTO shaft rotation Counterclockwise (from PTO shaft side)
Dimensions (L x W X H) 256 x 307 x 287 mm (10.1 x 12.1 x 11.3 in)
Dry weight 7.8 kg (17.2 lbs)

Service Data

Oil system
Lubrication system: Fuel-lubricant Mixture Type
Recommended oil: 2-Cycle Engine Oil
Oil capacity Gasoline-lubricant mixture: 25:1
Fuel system
Type: Float type carburetor
Ignition system
Type: Flywheel Magneto Type (Contactless Magneto Type available as option)
Spark plug: NGK: B7HS
Spark plug torque: 27.5 N·m (2.8 kg·m, 20.3 ft·lb)

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