Specified spark plug:

• NGK DR8ES-L or ND X24ESR-U
• NGK D8ES-L or ND X24ES

1. Remove the spark plug lead and take out the plug with the special wrench provided in the tool kit.

2. Inspect the electrodes and centre porcelain for deposits, erosion or carbon fouling. If the erosion or deposit is heavy, replace the plug. Clean a carbon or wet-fouled plug with a plug cleaner, otherwise use a wire brush.

3. Measure with a feeler gauge and adjust to 0.06 - 0.07 mm (0.024 - 0.028 in.) (1) by bending the side electrode (2). Do not over-tighten.