Yamaha YBR250 2007, Service Manual

Page: 313 / 361

ELEC
CHECKING SWITCH CONTINUITY
CHECKING SWITCH CONTINUITY
Check each switch for continuity with the pocket
tester. If the continuity reading is incorrect, check
the wiring connections and if necessary, replace the
switch.
Never insert the tester probes into the coupler
terminal slots
1 1 1 1 1
. Always insert the probes from
the opposite end of the coupler, taking care not
to loosen or damage the leads.
CAUTION:
Pocket tester
90890-03174
1
7-3
The terminal connections for switches (e.g., main
switch, engine stop switch) are shown in an
illustration similar to the one on the left.
The switch positions
a
are shown in the far left
column and the switch lead colors
b
are shown in
the top row in the switch illustration.
" " indicates a continuity of electricity between
switch terminals (i.e., a closed circuit at the
respective switch position).
The example illustration on the left shows that:
There is continuity between black and black/white
when the switch is set to "OFF".
There is continuity between red lead and brown/blue.
There is continuity between red and brown when
the switch is set to "ON".
NOTE:
NOTE:
Before checking for continuity, set the pocket
tester to "0" and to the "
Ω
x1" range.
When checking for continuity, switch back and
forth between the switch positions a few times.
a
b
/
/