
The Kama 7GP-4 engine has OHV design, single-cylinder, direct injection system and recoil or electric starter. This engine is based on general-purpose engine KM170F.
The 7GP-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 4.2 HP (3.1 kW) of maximum horsepower. The continuous rated output power is 3.8 HP (2.8 kW).
General information
| Engine Specifications | |
| Model | 7GP-4 | 
| Type | 4-stroke, single cylinder, diesel engine | 
| Displacement | 211 cc (12.88 cu.in.) | 
| Max. horsepower | 4.2 HP (3.1 kW) | 
| Rated Output Power | 3.8 HP (2.8 kW) | 
| Output Mode | Horizontal shaft output | 
| Transmission Mode | Belt | 
| 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 ~ 7 m | 
| Loading Capacity | ≤2.0 T | 
Dimensions and Weight
| Length, mm (in) | – | 
| Width, mm (in) | – | 
| Height, mm (in) | – | 
| Engine Weight, kg (lb) | ≤27.0 (59.5) | 
| Overall Weight, kg (lb) | ≤60.0 (132.3) | 
Maintenance data
| Engine | |
| Engine speed | 3,600 rpm | 
| Oil system | |
| Oil type | Oil for 4-stroke engines (above CC grade) | 
| Recommended oil | 10W-30 | 
| Oil capacity | 0.75 l (0.16 gal.) | 
| Gear Lubricant Type | API GL5: SAE80-90 | 
| Fuel system | |
| Injection pressure | 200 kg/cm2 (19.6 MPa) | 
| Fuel supply advance angle | 17°±1° | 
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