The Honda F300D tiller is equipped with small general-purpose Honda GX80 engine (79.7 cc, 4.88 cu-in) and automatic transmission and a belt tension clutch. The engine uses transistorized magneto ignition, horizontal type carburetor, and recoil starter.
The Honda GX80 is a single-cylinder air-cooled 4-stroke internal combustion engine. The GX80 engine a compression ratio rating is 9.0:1, cylinder bore and the piston stroke are 46.0 mm (1.81 in) and 48.0 mm (1.89 in), respectively. This engine uses transistorized magneto ignition, horizontal type carburetor with butterfly valve, and recoil starter.
The GX80 engine produces 2.0 PS (1.5 kW; 2.0 HP) at 3,600 rpm of horsepower and 4.5 N·m (0.5 kg·m, 3.3 ft·lb) at 2,500 rpm of torque.
General information
| Tiller, Rotavator, Cultivator Specifications | |
| Model | Honda F300D |
| Dimensions (L x W x H): | 1,320 x 550 x 945 mm (52.0 x 21.7 x 37.2 in) |
| Dry weight (without tines) | 38.0 kg (83.8 lbs) |
| Max handle height | – |
| Fuel tank capacity | 1.4 liters (1.48 US.qts, 1.23 Imp. qts) |
| Engine | |
| Engine model | Honda GX80 |
| Displacement | 79.7 cm3 (4.88 cu-in) |
| Bore x stroke | 46.0 x 48.0 mm (1.81 x 1.89 in) |
| Max. horsepower | 2.0 PS (1.5 kW; 2.0 HP) at 3,600 rpm |
| Max. torque | 4.5 N·m (0.5 kg·m, 3.3 ft·lb) at 2,500 rpm |
| Carburetor | Horizontal type, butterfly valve |
| Cooling system | Forced-air |
| Ignition system | Transistorized magneto ignition |
| Lubricating system | Splash |
| Starting system | Recoil starter |
| Stoping system | Ignition primary circuit ground |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Transmission and clutch | |
| Engine to transmission | V-belt |
| Clutch | Belt tension type |
| Transmission | Automatic |
| Transmission oil capacity | 1.0 liters (1.05 US.qts, 0.9 Imp. qts) |
Service Data
| Valve clearance | |
| Intake valve clearance (COLD): | 0.10±0.02 mm (0.004±0.001 in) |
| Exhaust valve clearance (COLD): | 0.15±0.02 mm (0.006±0.001 in) |
| Oil system | |
| Lubrication system: | Splash type |
| Oil type: | SF or higher |
| Recommended oil: | SAE 10W-30 |
| Oil capacity: | 0.36 L (0.38 US. qt, 0.32 Imp. qt.) |
| Ignition system | |
| Type: | Transistorized magneto ignition |
| Spark plug: | NGK C4HSB |
| Spark plug gap: | 0.7-0.8 mm (0.0276-0.0315 in) |
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