Spark plug: Make sure the spark plug is properly connected to the spark plug wire. Check the gap between the electrodes of the spark plug. It should be between 0.028 and 0.031 inches (0.7 to 0.8 mm). If the gap is too wide or too narrow, adjust the electrodes to the proper specification.
Spark plug wire: Check the spark plug wire for any damage or cracks. Make sure the wire is properly connected to the ignition coil and the spark plug.
Ignition coil: Check the ignition coil for any damage or corrosion. Make sure the coil is properly connected to the battery and the spark plug wire.
CDI box: The CDI box is responsible for generating the electrical current that powers the ignition coil. Check the CDI box for any damage or corrosion. Make sure the CDI box is properly connected to the battery and the ignition coil.
Battery: Check the battery for any damage or corrosion. Make sure the battery is properly connected to the CDI box and the starter motor.
Starter motor: Check the starter motor for any damage or corrosion. Make sure the starter motor is properly connected to the battery and the engine.
If you are unable to find the problem, you may want to take the Bayou 300 to a qualified mechanic for further diagnosis and repair.