Special Tool - Hand Tester: 57001-1394
For the switch housings and the ignition switch, refer to the tables in the Wiring Diagram.
If the switch has an open or short, repair it or replace it with a new one.
Rear Brake Light Switch Connections

Sidestand Switch Connections 
Oil Pressure Switch Connections*

*: Engine lubrication system is in good condition.
Switches and Sensors
Water Temperature Sensor InspectionSpring Plate Free Play Measurement
Insufficient clutch free play will cause the engine braking
effect to be more sudden, resulting in rear wheel hop. On
the other hand, if the free play is excessive, the clutch lever
may feel “spongy” or pulsate when pulled.
Hold an extra drive shaft in a vise and install the following
c ...
Fuel Flow Rate Inspection
WARNINGGasoline is extremely flammable and can be
explosive
under certain conditions, creating the
potential for serious burns. Make sure the area is
well-ventilated and free from any source of flame
or sparks; this includes any appliance with a pilot
light. Do not smoke. T ...
Subthrottle Valve Actuator Input Voltage Inspection
NOTE
Be sure the battery is fully charged.
Turn the ignition switch to OFF.
Disconnect the subthrottle valve actuator connector and
connect the measuring adapter [A] between these connectors
as shown in the figure.
Main Harness [B]
Subthrottle Valve Actuator [C]
Special Tool ...