Honda F28

Honda F28 tillerThe 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)

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