1. Spark Plug: Check if the spark plug is dirty, damaged, or has a faulty gap. Replace it if necessary.
2. Spark Plug Wire: Ensure the spark plug wire is properly connected and not damaged. Replace it if needed.
3. Ignition Coil: Test the ignition coil for proper resistance. Replace it if defective.
4. CDI Box: Check the CDI box for any damage or corrosion. Replace it if necessary.
5. Stator: Test the stator for proper voltage output. Replace it if faulty.
6. Wiring: Check the wiring harness for any loose connections, shorts, or breaks. Repair or replace any damaged wires.
7. Fuel System: Check for fuel flow to the carburetor or fuel injector. Ensure the fuel pump is working properly. Clean or replace the carburetor if necessary.
8. Battery: Make sure the battery is fully charged and the connections are tight. Replace the battery if it's weak or damaged.
9. Starter Solenoid: Check if the starter solenoid is engaging properly and allowing power to the starter motor. Replace the solenoid if defective.
10. Starter Motor: Test the starter motor for proper function. Replace it if faulty.
If you have checked all these components and still have no spark, it's best to take your ATV to a qualified mechanic for further diagnosis and repair.
