1. Check the Spark Plug:
- Remove the spark plug and inspect it for damage, wear, or fouling.
- Clean or replace the spark plug as needed.
2. Check the Spark Plug Wire:
- Ensure the spark plug wire is properly connected to the spark plug and the ignition coil.
- Check for any damage or corrosion on the wire and replace it if necessary.
3. Check the Ignition Coil:
- Disconnect the spark plug wire from the ignition coil.
- Using a multimeter, test the resistance of the ignition coil as per the manufacturer's specifications.
- If the resistance is out of spec, replace the ignition coil.
4. Check the Kill Switch:
- Make sure the kill switch is in the "Run" position.
- If the kill switch is faulty, it can interrupt the spark.
5. Check the Wiring Connections:
- Inspect all electrical connections, especially around the ignition coil and CDI box, for any loose or corroded wires.
- Clean or repair any faulty connections.
6. Check the CDI Box:
- The CDI box (Capacitor Discharge Ignition) is responsible for generating the electrical pulse that powers the ignition coil.
- If the CDI box is faulty, it can cause a lack of spark. You may need to test or replace the CDI box if you suspect it's the issue.
7. Check the Grounding:
- Ensure that the engine has proper grounding to the chassis or frame.
- Clean and tighten any grounding points if necessary.
8. Inspect the Flywheel:
- Remove the flywheel cover and check for any damage, missing magnets, or loose flywheel bolts.
- Replace the flywheel or repair the magnets if necessary.
9. Check the Stator:
- The stator is responsible for generating power for the ignition system.
- Test the stator resistance using a multimeter to ensure it meets the specifications in your Suzuki LT 80 manual.
- Replace the stator if it fails the test.
10. Check the Rectifier:
- The rectifier converts the AC current from the stator to DC current for charging the battery and powering the ignition system.
- Test the rectifier output using a multimeter to make sure it is functioning correctly. Replace it if it is faulty.
If none of these troubleshooting steps resolve the issue, you may need to consult with a professional mechanic or refer to the specific service manual for your Suzuki LT 80 4 wheeler for further assistance.