The standard spark plug is shown in the table. The spark plugs should be replaced in accordance with the Periodic Maintenance Chart.
Spark plug removal should be done only by a competent mechanic following the instructions in the Service Manual.
Spark Plug

A. Plug Gap
Coolant Filling
Evaporative Emission Control System (California
model only)Special Tools and Sealant
Oil Pressure Gauge, 5 kgf/cm²:
57001-125
Hand Tester:
57001-1394
Needle Adapter Set:
57001-1457
Extension Tube:
57001-1578
Fuel Pressure Gauge Adapter:
57001-1593
Fuel Hose:
57001-1607
Measuring Adapter:
57001-1700
Liquid Gasket, TB1211:
56019-120
...
City Light (LED) Removal/Installation
Remove:
Upper Fairing Assembly (see Upper Faring Assembly
Removal in the Frame chapter)
Headlight (see Headlight Removal)
Remove the screws [A], and take the city light [B] off the
upper fairing assembly.
Installation is the reverse of removal. Note the following.
When inst ...
Front Fork Inspection
Holding the brake lever, pump the
front fork up and down several times
to inspect smooth stroke.
Visually inspect the front fork for oil
leakage, scoring or scratches on the
outer surface of the inner tube.
If any doubt about the front fork, it
should be checked by an authorized
K ...