Spark Plug: Service and Repair

Spark Plug Replacement

Removal Procedure

1. Remove the engine cover. Refer to Engine Cover Replacement (Service and Repair).
2. Remove the spark plug wires. Refer to Spark Plug Wire Replacement (Service and Repair).




3. Loosen each spark plug 1 or 2 turns.
4. Use a brush, or use compressed air in order to remove any dirt from the spark plugs.
5. Remove the spark plugs one at a time and place each plug in a tray marked with the corresponding cylinder numbers.

Installation Procedure




1. Inspect each spark plug gap. Adjust each plug as needed.

Spark plug gap: 1.524 mm (0.060 in).

2. Hand start the spark plugs in the corresponding cylinders.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Tighten the spark plugs. Tighten the engine spark plug on a NEW cylinder head to 20 Nm (15 lb ft) and the engine spark plug on subsequent installations to 15 Nm (11 lb ft).
4. Install the spark plug wires. Refer to Spark Plug Wire Replacement (Service and Repair).
5. Install the engine cover. Refer to Engine Cover Replacement (Service and Repair).