NOTE
Be sure the battery is fully charged.
Do not remove the spark plugs.

Install the new spark plug [A] into each stick coil [B], and ground them onto the engine.
Connect the peak voltage adapter [C] into the hand tester [D] which is set to the DC 250 V range.
Connect the adapter to the lead wire-peak voltage adapter [E] which is connected between the stick coil connector and stick coil.
ECU [F] Battery [G]
Special Tools - Hand Tester: 57001-1394 Peak Voltage Adapter: 57001-1415 Type: KEK-54-9-B Lead Wire-Peak Voltage Adapter: 57001 -1449

Connections: Adapter (R, +) → Lead Wire-Peak Voltage Adapter (W) Adapter (BK, –) → Lead Wire-Peak Voltage Adapter (R)
| WARNING To avoid extremely high voltage shocks, do not touch the spark plugs or tester connections. |
Stick Coil Primary Peak Voltage Standard: 100 V or more
If the reading is less than the specified value, check the following.
Stick Coils (see Stick Coil Inspection) Crankshaft Sensor (see Crankshaft Sensor Inspection) ECU (see ECU Power Supply Inspection in the Fuel System (DFI) chapter)
Spark Plug Removal
Refer to the Spark Plug Replacement in the Periodic Maintenance chapter.
Spark Plug Installation
Refer to the Spark Plug Replacement in the Periodic Maintenance chapter.
Stick Coil Inspection
Spark Plug Condition InspectionHub Bearing Removal
Remove the wheels (see Front/Rear Wheel Removal),
and take out the following.
Collars
Coupling (Out of rear hub)
Grease Seals
Use the bearing remover to remove the hub bearings [A].
NOTICE
Do not lay the wheel on the ground with the disc
facing down. This can damage or warp the d ...
Starter Relay Inspection
Remove the front seat (see Front Seat Removal in the
Frame chapter).
Remove the battery negative (–) cable from the battery
negative (–) terminal (see Battery Removal).
Take the starter relay [A] off the rear fender.
Remove the cover [B].
Remove:
Starter Motor Cable [A] ...
Intake Air Pressure Sensor #1 Installation
NOTE
The intake air pressure sensor #1 is the same part as
the intake air pressure sensor #2.
Installation is basically the reverse of removal.
Position the intake air pressure sensor #1 [A] between the
projections [B] on the rubber damper.
Install the rubber damper [A] on the bracket ...