7. Check Spark Plug For Proper Operation
- Remove the spark plug.
- Visually check the spark plug for carbon tracking, foreign materials (Oil or fuel), damage, or cracking.
- Measure the spark plug gap and check the spark plug for proper operation.
- Air Gap: 1.0~1.1 mm (0.039~0.043 in)
Is spark plug okay?
Yes: Go to next step.
No: Repair or replace it.