Yamaha YSR50T Service Manual page 174

IGNITION AND STARTING SYSTEM
I
ELEC
1
I S
1
Tester
(
+
Lead+White/Red
@
Lead
Tester
(
-
)
Lead+Black
@
Lead
*Check the pickup coil for specificated
resistance.
1
Pickup Coil Resistance:
(WhitelRed- Black)
I 1
MEETS SPECIFICATION
9. Source coil resistance
OUT OF SPECIFICATION
Pickup coil is faulty, replace
it.
*Disconnect the CDI magneto lead (Black/
Red) and coupler (Sky blue, White, Black and
YellowIRed) from the wireharness.
*Connect the Pocket Tester
( Q x
100) to the
source coil leads.
Tester
(
+
Lead+Black/Red
@
Lead
Tester
( - )
Lead+Black
@
Lead
*Check the source coil for specificated
resistance.
1
Source Coil Resistance:
264
-
396Q at 20°C (68OF)
(BlackIRed- Black)
OUT OF SPECIFICATION
Source coil is faulty, replace it.
it
MEETS SPECIFICATION
.3c
7-12