GL1200 Ltd. and SEI Repair -- Reference Chart

THIS REFERENCE IS TO HELP TO TROUBLESHOOT THE COMPONETS OF THE MOTORCYCLE.
THE ITEMS THAT ARE LISTED ARE MERELY A GUIDE TO HELP PINPOINT THE SOURCE OF
THE PROBLEM.

HARD STARTING (COLD)

PROBABLE CAUSES

   * FUEL PRESSURE
   * FUEL PUMP
   * INJECTORS
   * WIRE CONNECTORS
   * ECU UNIT
   * SPARK PLUGS
   * GR/GL SENSORS

OTHER POSSIBILITIES

   * FUEL LEAK
   * FUEL VALVE
   * FUEL FILTER
   * PBR/PBL SENSORS
   * AIR VALVE/REED VALVE
   * TW SENSOR
   * TUBING
   * SPARK PLUG WIRES
   * IGNITION COIL
   * SPARK UNITS
   * BATTERY
   * PLUG GAP
   * CYLINDER COMPRESSION

HARD STARTING (HOT)

PROBABLE CAUSES

   * FUEL PRESSURE
   * FUEL PRESSURE REGULATOR
   * FUEL PUMP
   * INJECTORS
   * WIRE CONNECTORS
   * TUBING
   * ECU UNIT
   * SPARK PLUGS
   * GR/GL SENSORS

OTHER POSSIBILITIES

   * FUEL LEAK
   * FUEL VALVE
   * FUEL FILTER
   * PBR/PBL SENSORS
   * WIRE CONNECTORS
   * TUBING
   * ECU UNIT
   * SPARK PLUG WIRES
   * IGNITION COIL
   * SPARK UNIT
   * BATTERY

ERRATIC OR POOR IDLING

PROBABLE CAUSES

   * FUEL PRESSURE
   * PBR/PBL SENSORS
   * AIR VALVE/REED VALVE
   * WIRE CONNECTORS
   * TUBING
   * THROTTLE VALVE SYNC.
   * SPARK PLUGS
   * PLUG GAP
   * SECCONDARY AIR LEAK

OTHER POSSIBILITIES

   * FUEL LEAK
   * FUEL VALVE
   * FUEL FILTER
   * FUEL PRESSURE REGULATOR
   * INJECTORS
   * T1 SENSOR
   * TW SENSOR
   * ECU UNIT
   * SPARK PLUG WIRE
   * IGNITION COIL
   * BATTERY
   * CYL. COMPRESSION

ENGINE STALLING

PROBABLE CAUSES

   * FUEL PRESSURE
   * PBR/PBL SENSOR
   * WIRE CONNECTORS
   * TUBING
   * SPARK PLUGS
   * SECONDARY AIR LEAK

OTHER POSSIBILITIES

   * FUEL LEAK
   * FUEL FILTER
   * FUEL VALVE
   * FUEL PRESSURE REGULATOR
   * FUEL PUMP
   * ECU UNIT
   * THROTTLE VALVE SYNC.
   * SPARK PLUG WIRE
   * IGNTION COIL
   * SPARK UNITS
   * GR/GL SENSORS
   * NS SENSOR
   * PLUG GAP
   * CYL. COMPRESSION

POOR ACCELERATION/LACK OF POWER

PROBABLE CAUSES

   * FUEL PRESSURE
   * WIRE CONNECTORS
   * TUBING
   * ECU UNIT
   * SPARK PLUGS
   * SPARK PLUG WIRE
   * NS SENSOR
   * SECONDARY AIR LEAK

OTHER POSSIBILITIES

   * FUEL LEAK
   * FUEL VALVE
   * FUEL FILTER
   * FUEL REGULATOR
   * INJECTOR
   * THROTTLE SENSOR
   * IGNITION COIL
   * PLUG GAP
   * LEAKY EXHAUST
   * CYL. COMPRESSION
   * WORN VALVE STEM/GUIDES/SEAL
   * BRAKES DRAGGING

POOR PERFORMANCE/DRIVEABILITY

PROBABLE CAUSES

   * THROTTLE SENSOR
   * PBR/PBL SENSORS
   * WIRE CONNECTORS
   * TUBING
   * SPARK PLUGS
   * NS SENSOR
   * SECONDARY AIR LEAK

OTHER POSSIBILITIES

   * FUEL PRESSURE
   * FUEL LEAK
   * FUEL VALVE
   * FUEL FILTER
   * FUEL PRESSURE REGULATOR
   * ECU UNIT
   * SPARK PLUG WIRE
   * IGNITION COIL
   * GR/GL SENSORS
   * PLUG GAP

EXCESSIVE FUEL CONSUMPTION

PROBABLE CAUSES

   * FUEL PRESSURE
   * THROTTLE SENSOR
   * PBR/PBL SENSORS
   * SPARK PLUGS
   * WIRE
   * CONNECTORS
   * BRAKE DRAGGING

OTHER POSSIBILITIES

   * FUEL LEAK
   * FUEL VALVE
   * FUEL FILTER
   * FUEL PRESSURE REGULATOR
   * WIRE CONNECTIONS
   * TUBING
   * ECU UNIT
   * GR/GL SENSORS
   * NS SENSOR
   * SPARK PLUGS
   * SPARK GAP
   * WORN VALVE STEM/GUIDES/SEALS

BACKFIRE/AFTERFIRE

PROBABLE CAUSES

   * FUEL PRESSURE
   * PBR/PBL SENSORS
   * SPARK PLUGS
   * SECONDARY AIR LEAK

OTHER POSSIBILITIES

   * FUEL LEAK
   * FUEL VALVE
   * FUEL FILTER
   * FUEL PRESSURE REGULATOR
   * INJECTORS
   * T1 SENSOR
   * WIRE CONNECTIONS
   * TUBING
   * ECU UNIT
   * THROTTLE VALVE SYNC.
   * SPARK UNIT
   * GR/GL SENSORS
   * NS SENSOR
   * PLUG GAP

KNOCKING/ENGINE PING/VALVE CLATTER

PROBABLE CAUSES

   * GASOLINE OCTANE
   * ECU UNIT
   * SPARK PLUGS
   * WIRE CONNECTIONS

OVERHEATING

   * WATER PUMP
   * WORN VALVE STEMS/GUIDES/SEALS
   * COOLANT LEVEL
   * COOLANT FAN OPERATION
   * COOLANT FAN TEMPERATURE SWITCH

POOR ENGINE BRAKING

   * AIR VALVE/REED VALVE

EXCESSIVE WHITE SMOKE

   * CLOGGED CRANKCASE BREATHER
   * WORN VALVE STEMS/GUIDES/SEALS
   * WORN PISTON RINGS/CYLINDERS

EXCESSIVE BLACK SMOKE

PROBABLE CAUSES

   * FUEL PRESSURE
   * TW SENSOR
   * SPARK PLUGS

OTHER POSSIBILITIES

   * INJECTORS
   * THROTTLE SENSOR
   * PBR/PBL SENSOR
   * WIRE CONNECTIONS
   * TUBING
   * ECU UNIT
   * INSULATOR (FUEL SETTLED)

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