The Honda F28 tiller is equipped with small general-purpose Honda G28 engine (68 cc, 4.1 cu-in), automatic centrifugal and manual V-belt clutches, transmission with two forward speeds and reverse gear with safety lock. The engine uses oil bath type air cleaner, horizontal carburetor with butterfly valve and recoil starter.
The G28 is a single-cylinder air-cooled 4-stroke internal combustion with 49.0 mm (1.93 in) cylinder bore and 35.5 mm (1.40 in) piston stroke. Compression ratio rating is 8.0:1.
The engine produced up to 3.0 HP (2.23 kW) at 6,000 rpm of maximum output power and 3.84 Nm (0.39 kg·m, 2.83 ft·lb) at 4,000 rpm of torque.
General information
| General specifications | |
| Model | Honda F28 |
| Dimensions (L x W x H): | 1422 x 584 x 889 mm (56 x 23 x 35 in) |
| Dry weight (without tines) | 36.9 kg (81.5 lbs) |
| Shaft width: |
Min: 330 mm (13 in) – one tine each side Max: 914 mm (36 in) – three tines each side |
| Fuel tank capacity | – |
| Engine | |
| Engine model | Honda G28 |
| Displacement | 67 cm3 (4.09 cu-in) |
| Bore x stroke | 49 x 35.5 mm (1.93 x 1.40 in.) |
| Max. horsepower | 3.0 HP (2.23 kW) at 6,000 rpm |
| Max. torque | 3.84 Nm (0.39 kg·m, 2.83 ft·lb) at 4,000 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) |
| Fuel tank capacity | 2.5 L (0.65 US gal) – 3.3 Hours operation |
| Transmission and clutch | |
| Transmission | Two speed forward with V-belt adjustment; reverse gear with safety lock |
| Clutch | Automatic centrifugal and manual V-belt |
| P.T.O. shaft | 19 mm x 4 mm (0.7480 in x 0.1574 in), flat keyway |
Maintenance data
| Oil system | |
| Oil type | Honda 4-stroke or an equivalent |
| Recommended oil | SAE 10W-30 or 10W-40 |
| Engine oil capacity | 0.7 L (0.78 qt) |
| Transmission oil capacity | 0.98 L (1.0 qt) |
| Ignition system | |
| Spark plug | NGK: C-6HB |
| Spark plug gap | 0.6-0.7 mm (0.024-0.028 in) |
hi I’m after parts for my Honda f28 with g28 engine it’s not get dark to start it any help would be good thanks as it’s was my mums and never wsnt to get rid of it ….it has been a great tiller and want to keep it going ….