Troubleshooting; Engine Does Not Start Or Is Hard To Start - Honda Gold Wing GL1200D Shop Manual

Ciii'lHONDA
~GL1200D'GL1200A
22. TROUBLESHOOTING
ENGINE DOES NOT START OR IS HARD TO START
ENGINE LACKS POWER
POOR PERFORMANCE AT LOW AND IDLE SPEEDS
POOR PERFORMANCE AT HIGH SPEED
POOR HANDLING
HYDRAULIC VALVE ADJUSTER SYSTEM
ENGINE DOES NOT START OR IS HARD TO START
22-1
22-2
22-3
22-3
22-3
22-4
1. Check fuel flow 10 carburetor
REACfG CAR'URETOR
2. Perform spark teu
GOOD SPARK
J.
Test cylinder compression
COMPRESSION NORMAL
4. Start by following normal procedure
ENGINE DOES NOT FIRE
I
5. Remove and inspect spark plug
POSSIBLE CAUSE
NOT REACHING
CARBURETOR------~
• • (11 Fuel tank empty
(21 Clogged fuel line or fuel filter
(3) Sticking floal valve
(4) Fau1w fuel pump
(5) Faulty fuel pump relay
(6) Clogged fuel tank cap vent hole
WEAK OR N O S P A R K - - - - - - - - - -__ (1) Faulty spark plugs
(2) Fouled spark plugs.
(3) Faulty ign'tion control unit
(4) Broken or shorted high tension
wires
(5) Opened or shorted in ignition
circuit
(6) Broken or shorted ignition coil
III Faulty ignition switch
(8) Faulty pulse generator
LOW COMPRESSION
~.~(1)
Low battery charge
(2) Improper valve clearance
(Faulty hydraulic tappet)
(J)
Valve stuck open
(4) WOrn cyl;nder and piston rings
(S) Damaged cylinder head gasket
(6) Seized valve
(7) Improper valve timing
(81 Worn or damaged valve seat
(9) Warped or cracked cylinder head
ENGINE STARTS BUT
STOPS-------".~(l}
Improper choke operation
(21 Carburetor incorrectly adjusted
(J} Intake pipe leaking
(4) Improper ignition timing
(Ignition control unit or pulse
generator)
(5) Fuel contaminated.
fa.
WET
PLUG--------------~._(l)
Carburetor flOOded
(2) Incorrect choke cable free play
(J)
Cylinder flooded
(4) Air cleaner dirty
l5) Faulty carburetor (Rich m;Klure)
22-1
1