The Subaru-Robin EC06B is a 60.8 cc (3.72 cu·in) single-cylinder air-cooled 2-stroke internal combustion general-purpose gasoline engine with horizontal PTO shaft and Speed reduction system.
The Subaru-Robin EC06B engine has a lined aluminum cylinder, float type carburetor, T.C.I. ignition system (Transistor Circuit Ignition), recoil starter and speed reduction system with 1:2.5 reduction gear.
Cylinder bore is 44.0 mm (1.73 in) and piston stroke is 40.0 mm (1.57 in). The engine produced 2.6 PS (1.9 kW; 2.5 HP) at 2,000 rpm of maximum horsepower and 1.6 PS (1.2 kW; 1.6 HP) at 1,440 rpm or 1.9 PS (1.4 kW; 1.9 HP) at 1,800 of continuous power. Maximum torque is 9.3 N·m (0.9 kg·m, 6.9 ft·lb) at 1,480 rpm.
2-stroke, single cylinder
60.8 cm 3 (3.72 cu-in)
2.6 PS (1.9 kW; 2.5 HP) at 2,000 rpm
Max. torque (crank PTO)
9.3 N·m (0.9 kg·m, 6.9 ft·lb) at 1,480 rpm
Transistor Circuit Ignition
Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity
PTO shaft rotation
Counterclockwise (from PTO shaft side)
Dimensions and Weight
Length, mm (in)
Width, mm (in)
Height, mm (in)
Dry weight, kg (lb)
2-stroke or an equivalent
Gasoline-lubricant mixture: 20-25:1
Spark plug gap
0.7-0.8 mm (0.028-0.031 in)
Spark plug tightening torque
27.5 N·m (2.8 kg·m, 20.3 ft·lb)
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