The Honda F300 tiller is equipped with small general-purpose Honda G150 engine (144 cc, 8.8 cu-in); gear and chain transmission and V-belt and tension roller clutch. The engine uses transistorized magneto ignition, horizontal type carburetor, and recoil starter.
The Honda G150 is a single-cylinder air-cooled 4-stroke internal combustion engine. The G150 engine a compression ratio rating is 6.5:1, cylinder bore and the piston stroke are 64.0 mm (2.52 in) and 45.0 mm (1.77 in), respectively.
The G150 produced 3.5 HP (2.6 kW) at 3600 rpm of maximum horsepower and 7.1 Nm (0.72 kg·m; 5.2 ft·lb) at 3,000 rpm of torque.
General information
| Tiller, Rotavator, Cultivator Specifications | |
| Model | Honda F300 |
| Dimensions (L x W x H): | 1,200 x 590 x 1,080 mm (47.2 x 23.2 x 42.5 in) |
| Dry weight (without tines) | 33.5 kg (73.9 lbs) |
| Max handle height | 1,170 mm (46.1 in) |
| Fuel tank capacity | 1.7 L (0.45 US gal, 0.37 Imp gal) |
| Engine | |
| Engine model | Honda G150 |
| Displacement | 144 cm3 (8.8 cu-in) |
| Bore x stroke | 64.0 x 45.0 mm (2.52 x 1.77 in) |
| Max. horsepower | 3.5 HP (2.6 kW) at 3600 rpm |
| Max. torque | 7.1 Nm (0.72 kg·m; 5.2 ft·lb) at 3,000 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-pulley and V-belt |
| Pulley ratio | High: 1.23 Low: 1.57 |
| High-low shift | Relocating V-belt on pulleys |
| Clutch | V-belt and tension roller |
| Wheel shaft | Hexagonal |
Maintenance data
| Engine | |
| Maximum speed | 3,850 ± 150 rpm |
| Idle speed | 1,400 ± 150 rpm |
| Cylinder compression | 6.0 kg/cm2 (85 psi) |
| Adjust valve clearance | |
| Intake valve | 0.08-0.16 mm (0.0031-0.0063 in) |
| Exhaust valve | 0.16-0.24 mm (0.0063-0.0094 in) |
| Oil system | |
| Oil type | Honda 4-stroke “SE” |
| Recommended oil | 10W-40 |
| Oil capacity | 0.7 L (1.5 US pt. 1.2 Imp. pt.) |
| Transmission oil capacity | 1.1 L (2.3 US pt, 1.9 Imp. pt.) |
| Carburetor | |
| Main jet | #70 |
| Float height | 8.2 mm (0.32 in) |
| Pilot screw opening | 1-5/8 turns out |
| Ignition system | |
| Spark plug | NGK: B4H, BR4HS |
| Spark plug gap | 0.6-0.7 mm (0.024-0.028 in) |
| Spark plug cap resistance | 10 kΩ |
Author:
Does this tiller machine (Honda f300 petrol) need Same engine oil (10W 40) for engine and transmission?
Yes, the same oil is used in the engine and transmission, but pay your attention that this is a specification for the f300 of the late eighties, the new version with the gx80 engine uses SAE 10W-30 or 20W-40 (API SERVICE category SE or later) oil.