G424F(FE) Service Manual Chapter 2. Recommended Maintenance 24
Inspection of Spark Plug
Inspection and clean
1) Ignition cable
2) Ignition coil
1. Disconnect the ignition cables from ignition coil
ass’y.
2. Remove all spark plugs from the cylinder head
using a sparkplug wrench.
CAUTION
Take care not to come foreign materials into
spark-plug mounting hole.
3. Check the spark plug as below.
1) Insulator broken
2) Terminal worn
3) Carbon deposit
4) Gasket damaged or broken
5) Porcelain insulator of spark plug clearance
4. Check the plug clearance using a plug clearance
gauge and if the value is not within the specified
values, adjust it by bending the ground clearance.
When installing a new sparkplug, install it after
checking the uniform plug clearance.
Spark plug clearance 0.8~0.9mm
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