The Kama 7GV-4 is a 208 cc (12.7 cu.in.) single-cylinder air-coolled 4-stroke direct injection diesel outboat engine manufactured by WUXI WORLDBEST KAMA POWER CO., LTD.
The Kama 7GV-4 engine has OHV design, single-cylinder, direct injection system, and recoil or electric starter. This engine is based on general-purpose engine KM170FAX.
The 7GV-4 engine cylinder bore is 70.0 mm (2.76 in) and piston stroke is 55.0 mm (2.14 in). The compression ratio rating is 20:1. The engine produced 3.8 HP (2.8 kW) of maximum horsepower. The continuous rated output power is 3.4 HP (2.5 kW).
General information
| Engine Specifications | |
| Model | 7GV-4 |
| Type | 4-stroke, single cylinder, diesel engine |
| Displacement | 208 cc (12.7 cu.in.) |
| Max. horsepower | 3.8 HP (2.8 kW) |
| Rated Output Power | 3.4 HP (2.5 kW) |
| Output Mode | Vertical shaft output |
| Transmission Mode | Direct drive |
| Exhaust Mode | Muffler exhaust |
| Cooling system | Forced-air |
| Lubricating system | Pressure spray compound |
| Starting system | Recoil or electric starter |
| Fuel used | Light diesel oil |
| Mounting Height (mm) | 600 / 800 / 900 / 1000 / 1200 / 1400 (optional) |
| Propeller Speed | ≥1400 rpm |
| Propeller Parameters | 2 x 216 mm |
| Applicable Ship Length | 4 ~ 5 m |
| Loading Capacity | ≤2.0 T |
Dimensions and Weight
| Length, mm (in) | – |
| Width, mm (in) | – |
| Height, mm (in) | – |
| Engine Weight, kg (lb) | ≤16.0 (35.3) |
| Overall Weight, kg (lb) | ≤25.0 (55.1) |
Maintenance data
| Engine | |
| Engine speed | 3,000 rpm |
| Oil system | |
| Oil type | Oil for 4-stroke engines (above CC grade) |
| Recommended oil | 10W-30 |
| Oil capacity | 0.5 l (0.11 gal.) |
| Gear Lubricant Type | API GL5: SAE80-90 |
| Fuel system | |
| Injection pressure | 200 kg/cm2 (19.6 MPa) |
| Fuel supply advance angle | 22°±1° |
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