The Subaru-Robin EC06D 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.
The Subaru-Robin EC06D engine has a lined aluminum cylinder, float type carburetor, T.C.I. ignition system (Transistor Circuit Ignition) and recoil starter.
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 5,000 rpm of maximum horsepower and 1.6 PS (1.2 kW; 1.6 HP) at 3,600 rpm or 1.9 PS (1.4 kW; 1.9 HP) at 4,500 of continuous power. Maximum torque is 3.7 N·m (0.38 kg·m, 2.73 ft·lb) at 3,700 rpm.
General information
| Engine Specifications | |
| Model | EC06D |
| Type | 2-stroke, single cylinder |
| Displacement | 60.8 cm 3 (3.72 cu-in) |
| Max. horsepower | 2.6 PS (1.9 kW; 2.5 HP) at 5,000 rpm |
| Max. torque (crank PTO) | 3.7 N·m (0.38 kg·m, 2.73 ft·lb) at 3,700 rpm |
| Carburetor | Float type |
| Cooling system | Forced-air |
| Ignition system | Transistor Circuit Ignition |
| Lubricating system | Mechanical splashing |
| Starting system | Recoil |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Fuel tank capacity | 1.5 L |
| PTO shaft rotation | Counterclockwise (from PTO shaft side) |
Dimensions and Weight
| Subaru-Robin EC06D | |
| Length, mm (in) | 256 (10.1) |
| Width, mm (in) | 307 (12.1) |
| Height, mm (in) | 287 (11.3) |
| Dry weight, kg (lb) | 7.6 (16.8) |
Service Information
| Oil system | |
| Oil type | 2-stroke or an equivalent |
| Recommended oil | – |
| Oil capacity | Gasoline-lubricant mixture: 20-25:1 |
| Ignition system | |
| Spark plug | NGK: B6HS |
| 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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