Specifications; Tuneup Specifications; Quick Reference; Wiring Diagrams - Honda GX25 Owner's Manual

Specifications

GX25 (Basic types)
Description code
Length Width
Height
Dry mass [weight]
Engine type 4-stroke, overhead camshaft, single cylinder
Displacement
[Bore Stroke]
Net power 0.72 kW (1.0 PS, 1.0 bhp) at 7,000 rpm
(in accordance with SAE J1349 )
Max. Net torque
(in accordance with SAE J1349 )
Engine oil
capacity
Fuel tank Standard/Pump type :
capacity 0.58 L (0.153 US gal, 0.128 lmp gal)
Tiller type :
0.57 L (0.151 US gal, 0.125 lmp gal)
Cooling system
Ignition system
PTO shaft rotation
GX35 (Basic types)
Description code
Length Width
Height
Dry mass [weight]
Engine type 4-stroke, overhead camshaft, single cylinder
Displacement
[Bore Stroke]
Net power 1.0 kW (1.4 PS, 1.3 bhp) at 7,000 rpm
(in accordance with SAE J1349 )
Max. Net torque
(in accordance with SAE J1349 )
Engine oil
capacity
Fuel tank Standard/Pump type :
capacity 0.63 L (0.166 US gal, 0.139 lmp gal)
Tiller type :
0.70 L (0.185 US gal, 0.154 lmp gal)
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 7,000
rpm (Net Power) and at GX25: 5,000 rpm, GX35: 5,500 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.
GCART
198 221 230 mm
(7.8 8.7 9.1 in)
2.90 kg (6.39 lbs)
25.0 cm (1.53 cu-in)
[35.0 26.0 mm (1.4 1.0 in)]
1.0 N·m (0.10 kgf·m, 0.74 lbf·ft)
at 5,000 rpm
0.08 L (0.08 US qt, 0.07 lmp qt)
Forced air
Transistor magneto
Counterclockwise
GCAST
205 234 240 mm
(8.1 9.2 9.4 in)
3.46 kg (7.63 lbs)
35.8 cm (2.18 cu-in)
[39.0 30.0 mm (1.5 1.2 in)]
1.6 N·m (0.16 kgf·m, 1.2 lbf·ft)
at 5,500 rpm
0.10 L (0.11 US qt, 0.09 lmp qt)
Forced air
Transistor magneto
Counterclockwise

Tuneup Specifications

ITEM
Spark plug gap 0.6 0.7 mm
(0.024 0.028 in)
Idle speed 3,100 200 rpm
Valve clearance IN: 0.08
(cold) EX: 0.11
Other
specifications
Quick Reference Information
Fuel Unleaded gasoline
U.S.
Except
U.S.
Engine oil SAE 10W-30, API SJ or later, for general use.
Refer to page 8.
Spark plug CM5H (NGK)
CMR5H (NGK)
Maintenance Before each use:
Check engine oil level. Refer to page 9.
Check air filter. Refer to page 10.
First 10 hours:
Change engine oil. Refer to page 9.
Subsequent:
Refer to the maintenance schedule on page 7.

Wiring Diagrams

Standard/Tiller type:
Pump type:
(1) SPARK PLUG
(2) IGNITION COIL
(3) Engine switch on the equipment
powered by the engine.
(4) ENGINE SWITCH
Bl Black
ENGLISH
SPECIFICATION MAINTENANCE
Refer to page: 11
See your
0.02 mm authorized
0.02 mm Honda dealer
No other adjustments needed.
(Refer to page 8)
Pump octane rating 86 or higher
Research octane rating 91 or higher
Pump octane rating 86 or higher
OFF
ON
19