Engine Will Not Crank; Engine Cranks But Will Not Start; Engine Cranks But Will Not Start-Cold Weather; Engine Cranks But Will Not Start-Engine Hot - Honda Gold Wing GL1200D Shop Manual

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GL 12000' GL1200A
TROUBLESHOOTING
Engine will not crank
• Battery or charging system faulty
• Starter or starter system faulty
• Engine seized
• Switches or accessory faulty
Engine cranks but will not start
• Out of fuel or incorrect fuel
• Engine stop switch off
• Ignition system faulty
• Fuel filter clogged
• Fuel cap vent clogged
Engine cranks but wiil not start-cold weather
• Battery weak due to low temperature
• Incorrect choke cable adjustment
• lee in fuel lines, carburetors, fuel tank, or fuel filter
• Incorrect engone oil
• Water pump iced {incorrect antifreeze ratiol
Engine cranks but will not start-engine hot
• Fuel flow stopped by boiling (vapor lock) in lines, car·
buretor, or fuel pump
• Incorrect starting procedure
Run-on (continues to run with ignition off)
• Excessive carbon build-up in engine
• Intake pipe leak
• Old or incorrect fuel
Lack of power or high speed performance
• Alternator voltage low or battery low
• Ignition system faulty
• Intake pipe leaks
• Not enough fuel
• Valve springs weak or broken
• Cylinder head gasket blown
MAINTENANCE
Misfires at idie
• Dirty air cleaner
• Spark plugs gapped incorrectly
• Spark plug caps faulty
• Ignition cables deteriorated
• Carburetor problems (choke, clogged jets, high float
level, etc.)
Mid-range performance poor
• Incorrect spark plug heat range
• Faulty spark plugs
• Ignition system faulty
• Low engine compression
• Low fuel pump pressure
• Improperly adjusted throttle linkage
Backfires, explosions in muffler
• Ignition system faulty
• Retarded ignition timing
• Valve timing faulty
• Lean mixture loften due to dirt or water in fuel, or
intake air leak)
• Slow air cut-off valve faulty
• Leaky or sticking intake valve or weak or broken intake
valve spring
• FaUlty hydraulic tappet
• Weak or broken exhaust valve spring(s}
• Burnt exhaust varve(s)
Pre-ignition (mixture ignites before spark plug fires)
• Hot spot in combustion chamber (carbon particle)
• Overheated valve (sticking in guide)
• Overheated engine
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