RUIBIN—20B（EY20B）
| MODEL | RUIBIN—20B（EY20B） |
| TYPE | Aircooled, 4cycle, upright single cylinder, side valve, horizontal PTO shaft |
| Bore x Stroke（mm） | 67x?52 |
| Displacement（CM3） | 183 |
| Continuous output kW(HP)/rpm | 2.6(3.5)/1800 |
| Maximum output kW(HP)/rpm | 3.7（5.0)/2000 |
| Maximum torque N m(kgf?m)/rpm | 18/1600 |
| Type of Reduction | 1/2 Gear Reduction Type |
| Output shaft Type | Camshaft Putout |
| Direction of rotation | Counter-Clockwise Facing P.T.O.Shaft |
| Fuel | Automobile(unleaded)gasoline |
| Fuel Tank capacity liter(US gal.) | 3.8(1) |
| Lubricant | Engine oil SAE 10W-30,20W,30W |
| Lubrication | Mechanical splashing type |
| Lubrication Oil Capacity (US gal.) | 0.6(0.156) |
| Carburetor | Float type |
| Starter | Recoil starter |
| lgnition system | Transistorized |
| Dry weight Kg | 16 |
| Packing Size(cm) | 38×38×45 |
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