Honda GX240RT2 Service And Repair Manual page 233

TROUBLESHOOTING
BEFORE TROUBLESHOOTING
TROUBLESHOOTING
• Use a known-good battery for troubleshooting.
• Check that the connectors are connected securely.
• Check for sufficient fresh fuel in the fuel tank.
• Read the circuit tester's operation instructions carefully, and observe the instructions during inspection.
• Disconnect the battery cable before continuity inspection.
TROUBLESHOOTING
* Refer to page of base shop manual (GX390RT2/T2/UT2: 61Z5F00E3)
GENERAL SYMPTOMS AND POSSIBLE CAUSES
Engine does not start
or is hard to start.
Engine lacks power.
gx240ut2_gx270ut2_gx340ut2_gx390ut2
ENGINE OIL level low.
Inspection: (page 3-3)*
FUEL FILTER clogged.
Cleaning: (page 3-14)*
SPARK PLUG faulty.
Inspection: (page 3-9)*
IGNITION COIL faulty.
Inspection: (page 9-5)*
OIL LEVEL SWITCH faulty.
Inspection: page (page 11-5)
WIRE HARNESS faulty.
Check the wire harness connecting the ECM,
combination switch, oil level switch, and the ignition
coil for open or short circuit and for proper connection.
Inspection:
–Engine wire harness (page 4-4, 4-5, 4-6)
–Charging coil wire (page 8-5)
CHARGE/POWER COIL faulty.
Inspection: (page 8-5)
CONTROL GEAR BOX faulty.
Inspection: (page 6-5)
COMBINATION SWITCH faulty.
Inspection: (page 11-6)
ECM faulty.
Replacement: (page 6-4)
AIR CLEANER ELEMENT clogged.
Cleaning: (page 3-6)*
SPARK ARRESTER clogged.
Cleaning: (page 3-10)*
CARBURETOR faulty.
Disassemble: (page 6-4)
Inspection: (page 6-13)*
VALVE CLEARANCE incorrect.
Readjustment: (page 3-3)
VALVE or VALVE SEAT worn or damaged.
Inspection: (page 12-5)*
Recondition: (page 12-10)*
CYLINDER, PISTON, or PISTON RING worn.
Disassembly: (page 13-3, 13-12*)
Inspection: (page 13-13)*
Engine will not rev
sufficiently.