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Hyosung Aquila650FI Comet650/S/R FI 2008 Repair Service Manual PDF DOWNLOAD

This guide Repair manual contains an introductory description on HYOSUNG Aquila650FI & Comet650/S/R FI and procedures for its inspection / service and overhaul of its main components. It covers the differences from Carbure type and please refer to the service manual of A Hyosung Aquila650FI  (99000-51210),& Comet650 S (99000-94910) and  Comet650 R (99000-94810) for others which are not covered in this manual. Other information considered as generally known is not included. Read GENERAL INFORMATION section to familiarize yourself with outline of the vehicle and MAINTENANCE and other sections to use as a guide for proper inspection and service. This manual will help you know the vehicle better so that you can assure your customers of your optimum and quick service.

Hyosung Aquila650FI Comet650 S R FI 2008 Repair Service Manual

pdf Download now 2008Hyosung Aquila650FI Comet650/S/R FI 2008  Workshop Service Repair Manual.

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This Repair Manual Covers: 
GENERAL INFORMATION

  • SPECIFICATIONS

Fi system Diagnosis 

  • PRECAUTIONS IN SERVICING
  • FI SYSTEM TECHNICAL FEATURES
  • SELF-DIAGNOSIS FUNCTION
  • FI SYSTEM TROUBLESHOOTING
  • SENSORS

Fuel System And Throttlebody 

  • FUEL SYSTEM
  • REMOVAL AND DISASSEMBLY
  • REASSEMBLY AND INSTALLATION
  • FUEL PRESSURE INSPECTION
  • FUEL PUMP RELAY INSPECTION
  • FUEL MESH FILTER INSPECTION AND CLEANING
  • FUEL LEVEL GAUGE INSPECTION
  • THROTTLE BODY
  • REMOVAL
  • CLEANING
  • INSPECTION
  • INSTALLATION

Electrical System 
Servcie Information

TROUBLESHOOTING

◉ ENGINE
Complaint:Engine will not start or is hard to start.

Symptom and possible causes Remedy
Compression too low
1. Tappet clearance out of adjustment.
2. Worn valve guides or poor seating of valves.
3. Mistimed valves.
4. Excessively worn piston rings.
5. Worn-down cylinder bore.
6. Starter motor cranks too slowly.
7. Poor seating of spark plugs.
Plug not sparking
1. Fouled spark plugs.
2. Wet spark plugs.
3. Defective ignition coils.
4. Open or short in high-tension cord.
5. Defective pick-up coil.
6. Defective ECU.
7. Open-circuited wiring connections.
No fuel reaching the intake manifold
1. Clogged fuel filter or fuel hose.
2. Defective fuel pump.
3. Defective fuel pressure regulator.
4. Defective fuel injector.
5. Defective fuel pump relay.
6. Defective ECU.
7. Open-circuited wiring connections.
Incorrect fuel/air mixture
1. TP sensor out of adjustment.
2. Defective fuel pump.
3. Defective fuel pressure regulator.
4. Defective TP sensor.
5. Defective pick-up coil.
6. Defective IAP sensor.
7. Defective ECU.
8. Defective WT sensor.
9. Defective IAT sensor.
Adjust.
Repair or replace.
Adjust.
Replace.
Replace.
See electrical section.
Retighten.
Clean.
Clean and dry.
Replace.
Replace.
Replace.
Replace.
Repair or replace.
Clean or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Check and repair.
Adjust.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.

Complaint:Engine idles poorly.

Symptom and possible causes Remedy
1. Tappet clearance out of adjustment.
2. Poor seating of valves.
3. Defective valve guides.
4. Worn down camshafts.
5. Too wide spark plug gaps.
6. Defective ignition coils.
7. Defective pick-up coil.
8. Defective ECU.
9. Defective TP sensor.
10. Defective fuel pump.
11. Imbalanced throttle valve or SAV sole
Adjust.
Replace or repair.
Replace.
Replace.
Adjust or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Adjust.
Replace.

Complaint:Engine stalls often

Symptom and possible causes Remedy
Incorrect fuel / air mixture
1. Defective IAP sensor or circuit.
2. Clogged fuel filter.
3. Defective fuel pump.
4. Defective fuel pressure regulator.
5. Defective WT sensor.
6. Defective thermostat.
7. Defective IAT sensor.
8. Damaged or cracked vacuum hose.
Fuel injector improperly operating
1. Defective fuel injectors.
2. No injection signal from ECU.
3. Open or short circuited wiring connection.
4. Defective battery or low battery voltage.
Control circuit or sensor improperly operating
1. Defective ECU.
2. Defective fuel pressure regulator.
3. Defective TP sensor.
4. Defective IAT sensor.
5. Defective pick-up coil.
6. Defective WT sensor.
7. Defective fuel pump relay.
Engine internal parts improperly operating
1. Fouled spark plugs.
2. Defective pick-up coil or ECU.
3. Clogged fuel hose.
4. Tappet clearance out of adjustment.

.

Repair or replace.
Clean or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Repair or replace.
Repair or replace.
Replace or recharge.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Clean.
Replace.
Clean.
Adjust.
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