Ignition coil and spark plug removal and installation

Wait until the engine is cool enough to touch.

1. 1
   Turn the ignition switch off.
2. 2
   Remove the air cleaner box. Refer to “air cleaner box removal and installation” in section 1d .
3. 3
   Disconnect the lead wire couplers (1).

   

disconnect the lead wire coupler before removing the ignition coil to avoid lead wire coupler damage.

4. Remove the ignition coils (2).

• do not pry up the ignition coil with a screwdriver or a bar to avoid its damage.
• Be careful not to drop the ignition coil to prevent short/open circuit.

5. Remove the spark plugs with the spark plug wrench.

Special tool (a): 09930–10121 (spark plug wrench
set)

Install the spark plugs in the reverse order of removal.

Pay attention to the following points:

• screw the spark plugs into the cylinder head with fingers, and then tighten them to the specified torque.

do not cross thread or over tighten the spark plug, or such an operation will damage the aluminum threads of the cylinder head.

Special tool (a): 09930–10121 (spark plug wrench
set)

• Install the ignition coil and connect their lead wire couplers.

Caution do not hit the ignition coil with a plastic hammer when installing it.

Refer to “spark plug inspection and cleaning” in section 0b .