Yamaha XS650 Series, Shop Manual

Page: 63 / 215

4. Inspection:
If the flasher self-canceling system should
become inoperative, proceed as follows:
a. Pull off the 6-pin connectar from the
flasher canceling unit, and operate the
handle switch. If the signal operates
normally in L, R, and OFF, the following
are in good condition:
1) Flasher unit.
2) Bulb.
3) Lighting circuit.
4) Handle switch light circuit.
If (1) through (4) are in good condition.
the following may be faulty:
1) Flasher canceling unit.
2) Handle switch reset circuit.
3) Speedometer sensor circuit.
b. Pull off the 6-pin connector from the
flasher canceling unit, and connect a
tester x 100 range) across the white/
green and the black lead wires on the wire
harness side. Turn the speedometer shaft.
If the tester needle swings back and forth,
four times between 0 and the speedo-
meter sensor circuit is in good condition.
If not, the sensor or wire harness may be
inoperative.
c. Pull off the 6-pin connector from the
flasher canceling unit. Check if there is
continuity between the yellow/red lead
wire on the wire harness side and the
chassis.
If the test needle does not swing as
indicated above, check the handle switch
circuit and wire harness.
d. If no defect is found with the above
three check-ups and the flasher canceling
system is still inoperative, replace the
flasher canceling unit.
e. If the signal ftashes only when the
handle switch lever is turned to L or R
and it turns off immediately when the
handle switch lever returns to center,
replace the flasher canceling unit.
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