| Robin EX21 |
| Type |
Air-cooled, 4-cycle, slant single cylinder, OHC, horizontal P.T.O shaft |
| Bore×Stroke |
67×60 |
| Displacement |
211 |
| Continuous output |
3.2(4.4)/3000 3.7(5.0)/3600 |
| Max. output |
5.1(7.0)/4000 |
| Max. torque |
13.9(1.41)/2500 |
| Direction of rotation |
Counter clockwise as viewed from P.T.O shaft side |
| Fuel |
Automobile unleaded gasoline |
| Fuel tank capacity |
3.2 |
| Lubricant |
Automobile oil class SE or higher, SAE 10W-30 |
| Lubricant oil capacity |
0.6 |
| Ignition system |
Flywheel magneto(solid state) |
| Starting system |
Recoil starter |
| Governor |
Centrifugal flyweight type |
| Spark plug |
NGK BR6HS |
| Carburetor |
Float type |
| Net weight(kg) |
16 |
| Dimensions(L×W×H) |
311×366×335 |
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