Spark Plug Removal/Installation
Remove the plug cap.
Remove or install the spark plug using the spark plug wrench [A].
Special Tool -
Spark Plug Wrench, Hex 16: 57001–1262
Spark Plug: 13 N
installation is the reverse of removal. Noting the following.
Fit the plug cap securely.
Pull up the spark plug cap lightly to make sure of the installation of
the spark plug cap.
Spark Plug Gap
Refer to Spark Plug Gap in the Periodic Maintenance Chapter.
Spark Plug Cleaning and Inspection
Refer to Spark Plug Cleaning and Inspection in the Periodic Mainte-
When inspecting the igniter observe the following to avoid
damage to the igniter.
Do not disconnect the igniter while the engine is running.
This may damage the igniter.
Ignition Coil Primary Peak Voltage Check:
Disconnect the spark plug cap from mounting the spark plug [A].
Connect the good spark plug [B] to the spark plug cap, then touch
the engine with it.
Measure the voltage with each lead connected correctly.
correct value may not be obtained if disconnected.
Maintain the correct value of compression pressure for the cylinder.
(Be sure to measure the voltage with the spark plug install to the
The correct value may not be obtained if disconnected.
m (1.3 kgf
m, 9.6 ft
ELECTRICAL SYSTEM 14-13