User's Manual

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44
TECHNICAL & CONSUMER INFORMATION
Specifications
GX270
GX390
GX270/GX390 Tuneup
ITEM SPECIFICATION MAINTENANCE
50.7 lbs (23.0 kg)
4-stroke, overhead valve, single cylinder
16.5 cu-in (270 cm
)
3.0 2.3 in (77 58 mm)
15.7 16.9 16.0 in
(400 430 407 mm)
8.9 bhp (6.6 kW, 9.0 PS) at 3,600 rpm
Length Width Height
Dry weight
Engine type
Displacement
[Bore Stroke]
Max. output
Max. torque
Fuel consumption
Cooling system
Ignition system
PTO shaft rotation
14.1 lbf·ft (19.1 N·m, 1.95 kgf·m) at 2,500 rpm
0.42 lb/hph (258 g/kWh, 190 g/PSh)
Forced air
Transistorized magneto
Counterclockwise
Length Width Height
Dry weight
Engine type
Displacement
[Bore Stroke]
Max. output
Max. torque
Fuel consumption
Cooling system
Ignition system
PTO shaft rotation
16.7 17.7 17.4 in
(425 450 443 mm)
63.9 lbs (29.0 kg)
4-stroke, overhead valve, single cylinder
23.7 cu-in (389 cm
)
3.5 2.5 in (88 64 mm)
12.9 bhp (9.6 kW, 13.0 PS) at 3,600 rpm
19.5 lbf·ft (26.5 N·m, 2.7 kgf·m) at 2,500 rpm
0.42 lb/hph (258 g/kWh, 190 g/PSh)
Forced air
Transistorized magneto
Counterclockwise
Refer to page: 30
See your authorized
Honda dealer
Spark plug gap
Valve clearance
Other specifications
0.15 0.02 mm
0.20 0.02 mm
0.028 0.031 in
(0.70 0.80 mm)
]
][
[
No other adjustments needed.
(cold)
(cold)
IN:
EX:
01/11/15 11:02:24 31ZK6600_045