Honda CBR125R, Owner'S Manual

Page: 390 / 430

ELECTRIC STARTER
18-14
STARTER RELAY SWITCH
INSPECTION
Remove the single seat (page 2-4).
Shift the transmission into neutral.
Turn the ignition switch ON (and engine stop switch
" ": CM and U type).
Push the starter switch.
The coil is normal if the starter relay switch clicks.
If you don't hear the starter relay switch "CLICK",
inspect the starter relay switch using a procedure
below.
GROUND LINE
Disconnect the starter relay switch 4P (Red) connec-
tor.
Check for continuity between the Green/red wire of
the wire harness side (ground line) and ground
when the starter switch button is pushed.
If there is continuity when the transmission is in
neutral or when the clutch is disengaged and the
sidestand is retracted, the ground circuit of the relay
coil is normal. (In neutral, there is a slight resistance
due to the diode.)
STARTER RELAY INPUT VOLTAGE
Connect the starter relay switch 4P (Red) connector.
Turn the ignition switch ON (and engine stop switch
" ": CM and U type).
Measure the voltage between the Yellow/red (+)
wire terminal at the starter relay switch 4P (Red)
connector and ground (–).
If the battery voltage appears only when the starter
switch is pushed with the ignition switch ON (and
engine stop switch " ": CM and U type), the starter
relay input voltage is normal.
OPERATION CHECK
Remove the starter relay switch (page 18-15).
Connect a 12 V battery to the starter relay switch as
shown.
There should be continuity between the cable termi-
nals when the battery is connected, and not continu-
ity when the battery is disconnected.
STARTER RELAY SWITCH
4P (RED) CONNECTOR CONTINUITY:
4P (RED) CONNECTOR
(+)
(–)