Quick Reference; Wiring Diagrams - Honda GX120 Owner's Manual

Quick Reference Information
Fuel Unleaded gasoline
U.S.
Except
U.S.
Engine oil SAE 10W-30, API SJ or SL, for general use.
Refer to page 8.
Reduction Same oil to engine oil, see above (applicable
case oil types).
Spark plug BPR6ES (NGK)
W20EPR-U (DENSO)
Maintenance Before each use:
Check engine oil level. Refer to page 9.
Check reduction case oil (applicable types).
Refer to page 9
Check air filter. Refer to page 10.
First 20 hours:
Change engine oil. Refer to page 9.
Change reduction case oil (applicable types).
Refer to page 10.
Subsequent:
Refer to the maintenance schedule on page 7.
(Refer to page 8)
Pump octane rating 86 or higher
Research octane rating 91 or higher
Pump octane rating 86 or higher
10.

Wiring Diagrams

With Oil Alert and Electric Starter
With Oil Alert and Without Electric Starter
(1) CONTROL BOX
(2) RECTIFIER
(3) FUSE
(4) CIRCUIT BREAKER
(5) ENGINE SWITCH
(6) OIL ALERT UNIT
(7) Type with Oil Alert unit
Bl Black Br
Y Yellow O
Bu Blue Lb
G Green Lg
R Red P
W White Gr
ENGLISH
(8) OIL LEVEL SWITCH
(9) CHARGING COIL
(10) IGNITION COIL
(11) SPARK PLUG
(12) STARTER MOTOR
(13) STARTER SOLENOID
(14) BATTERY (12 V)
Brown
Orange
Light blue
Light green
Pink
Gray
OFF
ON
START
OFF
ON
19