The Honda F42 tiller is equipped with small general-purpose Honda G42F engine (171 cc, 10.4 cu-in), transmission with three forward speeds and reverse gear. The engine uses oil bath type air cleaner, horizontal carburetor with butterfly valve and recoil starter.
The Honda G42F is a single-cylinder air-cooled 4-stroke internal combustion engine with 66.0 mm (2.6 in) cylinder bore and 50.0 mm (2.0 in) piston stroke. Compression ratio rating is 6.5:1. The engine produced up to 4.5 PS at 4,000 rpm of maximum output power and 8.3 Nm (0.85 kg·m) at 3600 rpm of torque.
The Honda F42 transmission has three forward speeds and one speed for reversing. Power side clutches are built in on the wheel axle to connect and disconnect the engine power to each wheel respectively for steering. Engine power is transmitted to the driven pulley by means of the V-belt and it is then transmitted to the input shaft, countershaft, and final shaft in this order. The wheel shaft is driven by the final gear and chain.
General information
| Tiller, Rotavator, Cultivator Specifications | |
| Model | Honda F42 |
| Dimensions (L x W x H): | 1520 x 800 x 1080 mm (62.2 x 31.5 x 42.5 in) |
| Dry weight (without tines) | 66.5 kg (146.6 lbs) |
| Curb weight | 127 kg (280 lbs) |
| Fuel tank capacity | 4.0 L (1.1 US gal, 0.9 Imp. gal) |
| PTO Shaft type | Spline type |
| Shaft outside diameter | 20.0 mm (0.787 in) |
| Engine | |
| Engine model | Honda G42F |
| Displacement | 171 cm3 (10.4 cu-in) |
| Bore x stroke | 66 x 50 mm (2.6 in x 2.0 in in) |
| Max. horsepower | 4.5 PS (3.31 kW) at 4,000 rpm |
| Max. torque | 8.3 Nm (0.85 kg·m) at 3600 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 | |
| Transmission | Three speed forward and reverse gear |
| Transmission mechanism | Constant mesh-selective slide |
| Sub Transmission mechanism | Belt tensioner |
| Main clutch | Belt tensioner |
| Side clutch | Mechanical cam type |
Maintenance data
| Oil system | |
| Oil type | Honda 4-stroke or an equivalent |
| Recommended oil | SAE 10W-30 or 10W-40 |
| Engine oil capacity | 0.6 l (0.6 US gal. 0.5 Imp. gal.) |
| Transmission oil capacity | 2.1 L (4.3 Us pt, 3.7 Imp pt) |
| Ignition system | |
| Spark plug | NGK: B-6HS |
| Spark plug gap | 0.6-0.7 mm (0.024-0.028 in) |
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