Spark Plug

Repair Procedures

Inspection

[When Inspecting the Vehicle]

1. 1
   Race the engine to approximately 3000 rpm 3 or more times.
2. 2
   Remove the spark plug.
3. 3
   Visually inspect the spark plug. If the electrode is dry, the spark plug is good. If the electrode is wet, check for damage and electrode gap as shown below.

[Component Inspection]

1. 1
   Check the spark plug for thread and insulator damage. If damaged, replace the spark plug.
2. 2
   Check the electrode. Measure the insulation resistance with an ohmmeter. If the resistance is less than the specified value, adjust the electrode gap.

   Specification: 10 MΩ or more

   

3. 3
   Check the spark plug electrode gap. If the gap is greater than the maximum, replace the spark plug.

   Kappa 1.0 / 1.2 MPI: 0.7–0.8 mm (0.028–0.031 in.)

   

Replacement

1. 1
   Remove the ignition coil. (Refer to Engine Electrical System - "Ignition Coil")
2. 2
   Using a spark plug socket, remove the spark plug (A).

   Tightening torque: 14.7 ~ 24 N·m

   

3. 3
   Install in the reverse order of removal.
4. 4
   Remove the ignition coil. (Refer to Engine Electrical System - "Ignition Coil")
5. 5
   Using a spark plug socket, remove the spark plug (A).

   Tightening torque: 14.7 ~ 24 N·m

   

6. 6
   Install in the reverse order of removal.