Note: When removing the high-voltage wire, pull on the cap, not on the wire, to avoid damaging the wire.
2. Using a spark plug wrench, remove all spark plugs from the cylinder head.
Note: Make sure that no dirt enters the cylinders through the open spark plug holes.
3. Check the spark plugs for defects.
4. Using a special feeler gauge, measure the gap between the spark plug electrodes and adjust if necessary.
Nominal value:
- For spark plugs designed for unleaded petrol - 1.0-1.1 mm
- For spark plugs designed for leaded petrol - 0.7-0.8 mm
5. Insert the spark plug into place and tighten to the required torque (20-30 Nm).
6. The condition of the engine can be assessed by the deposits around the spark plug electrodes.
