Poor Performance At Low And Idle Speeds; Poor Performance At High Speed; Poor Handling - Honda Gold Wing GL1200D Shop Manual

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HONDA
~
GL1200D'GL1200A
TROUBLESHOOTING
POOR PERFORMANCE AT LOW AND IDLE SPEEDS
INCORRECT-------------~._See
Fuel System Se<:lion
1. Check ignition timing and lappet noise
CORRECT
t
2. Oleek carburetor pilot screw adjustment
I N C Q R R E C T - - - - - - - - - - - - _ .. (1)
121
POSSIBLE CAUSE
Faulty hydraulic tappet
Improper ignition liming
•
111
Deteriorated insulator O-ring
121
Loose carburetor
131
Damaged or deteriorated
vacuum rubes.
•
111
Faulty, carbon or wei fouled
spark plug
121
Faulty ignition conHol unit
131
Faulty ignition coil or high
tension wire
' "
Faulty pulse generator
L E A K I N G - - - - - - - - - - - _
WEAK OR INTERMITTENT SPARK----~~
GOOD SPARK
CORRECT
t
3. Check for leaking inlake pipe and vacuum
lUbes
NO LEAK
t
4. Perform spark tesl
POOR PERFORMANCE AT HIGH SPEED
POSSIBLE CAUSE
•
111
Faulty hydraulic tappet
121
Faulty ignition control unit
131
Faulty pulse generator
•
111
Fuel tank empty
121
Clogged fuel line or fuel filter
131
Clogged fuel tank cap
~ent
hole
' " Sticking float ~al~e
lSI
Faulty fuel pump
161
Faulty fuel pump relay
•
Clean
INCORRECT---------------~.·Camdri~e
pulley not in5talled properly
C L O G G E D - - - - - - - - - - - - _
INCORRECT - - - - - - - - - - - - _
WEAK ------------------~
•• Faulty spring
FUEL FLOW
RESTRICTED-------~,
1.
Check ignition timing and tappet noise
CORRECT
t
2. Disconol!(;! fuel line al earburetor
FUEL FLOWS FREELY
I
3 Remo~e carburetors and check for
clogged jets
NO CLOGGED JETS
t
••
Check
~al~e
timing
~
CORRECT
t
s.
Check ~al~e spring tension
NOT WEAKENED
POOR HANDLING
----~·~Check
tire and suspension pressures
POSSIBLE CAUSE
•
111
Steering bearing adiu~tement nut
too tight
121
Damaged steering head bearings
•
111
Excessive wheel bearing play
121
Bent rim
131
Improperly balanced Or misaligned
wheels
'"
Swing arm pivot bearing
excessively worn
lSI Bent frame
•
111
Bent frame
121
Front and rear wheels not aligned
131
Bent front fork
'"
Bent swing arm
22-3
1.
If Sleering is
heavy--------------------------------~
3.
II the motorcycle pulls to one s i d e - - - - - - - - - - - - - - - - - -
~~
2.
If either wheel is wobbling
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