Honda GX120 Owner's Manual page 13

Specifications
GX120 (Basic type)
Length Width
Height
Dry mass [weight]
Engine type 4-stroke, overhead valve, single cylinder
Displacement
[Bore Stroke]
Net power
(in accordance with SEA J1349 )
Max. Net torque
(in accordance with SEA J1349 )
Engine oil capacity
Cooling system
Ignition system
PTO shaft rotation
GX160 (Basic type)
Length Width
Height
Dry mass [weight]
Engine type 4-stroke, overhead valve, single cylinder
Displacement
[Bore Stroke]
Net power
(in accordance with SEA J1349 )
Max. Net torque
(in accordance with SEA J1349 )
Engine oil capacity
Cooling system
Ignition system
PTO shaft rotation
The power rating of the engine indicated in this document is the
net power output tested on a production engine for the engine
model and measured in accordance with SAE J1349 at 3,600
rpm (Net Power) and at 2,500 rpm (Max. Net Torque). Mass
production engines may vary from this value.
Actual power output for the engine installed in the final machine
will vary depending on numerous factors, including the
operating speed of the engine in application, environmental
conditions, maintenance, and other variables.
Tuneup Specifications GX120/160
ITEM SPECIFICATION
Spark plug gap 0.7 0.8 mm
(0.028 0.031 in)
Idle speed 1,500 150 rpm
Valve clearance IN: 0.15 0.02 mm
(cold) EX: 0.20 0.02 mm
Other
specifications
313 331 321 mm
(12.3 13.0 12.6 in)
16.5 kg (36.4 lbs)
118 cm (7.2 cu-in)
[60.0 42.0 mm (2.4
2.6 kW (3.5 PS, 3.5 bhp) at 3,600 rpm
7.3 N·m (0.74 kgf·m, 5.4 lbf·ft) at
2,500 rpm
0.40 L (0.42 US qt, 0.35 lmp qt)
When mount for rammer is angle 14°
Forced air
Transistor magneto
Counterclockwise
319 343 333 mm
(12.6 13.5 13.1 in)
18.6 kg (41.0 lbs)
163 cm (9.9 cu-in)
[68.0 45.0 mm (2.7
3.6 kW (4.9 PS, 4.8 bhp) at 3,600 rpm
10.3 N·m (1.05 kgf·m, 7.6 lbf·ft)
at 2,500 rpm
0.37 L (0.39 US qt, 0.33 lmp qt)
When mount for rammer is angle 20°
Forced air
Transistor magneto
Counterclockwise
MAINTENANCE
Refer to page: 8
Refer to page: 9
See your
authorized
Honda dealer
No other adjustments needed.
Quick Reference Information
Fuel
Engine oil
1.7 in)] Spark plug
Maintenance
Wiring Diagram
Wiring diagram may vary according to the type.
1.8 in)]
(1) SPARK PLUG
(2) IGNITION COIL
(3) ENGINE SWITCH
BI Black
ENGLISH
Unleaded gasoline (Refer to page 6)
U.S. Pump octane rating 86 or higher
Except Research octane rating 91 or higher
U.S. Pump octane rating 86 or higher
SAE 10W-30, API SJ or later, for general use.
Refer to page 6.
BP4ES (NGK)
W14EP-U (DENSO)
Before each use:
Check engine oil level. Refer to page 6.
Check air cleaner. Refer to page 8.
First 20 hours:
Change engine oil. Refer to page 7.
Subsequent:
Refer to the maintenance schedule on page 5.
OFF
ON
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