Yamaha 1999 XVS1100, Service Manual

Page: 307 / 355

7-12
IGNITION SYSTEM
ELEC
12. Diode
S
Remove the diode from the wire harness.
S
Check for continuity as follows:
14. Wiring
S
Check the entire ignition system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
S
Is the ignition system’s wiring properly con-
nected and without defects?
EAS00754
:
Tester (+) lead
Blue / White
Tester (–) lead
Blue / Yellow
1
2
Tester (+) lead
Blue / Yellow
Tester (–) lead
Blue / White
2
1
Continu-
ity
No Con-
tinuity
YES
Replace the diode.
NO
NOTE:
When you switch the “–” and “+” leads of the
digital pocket tester the readings in the above
chart will be reversed.
S
Is the diode OK?
YES
Properly connect or
repair the ignition
system’s wiring.
NO
Replace the ignitor
unit.
13. Starting circuit cut-off relay (diode)
S
Remove the relay unit from the wire har-
ness.
S
Check for continuity as follows:
Sky blue – Blue / Yellow
2
Tester (+) lead SKy blue
Tester (–) lead
Blue / Yellow
1
2
Tester (+) lead
Blue / Yellow
Tester (–) lead Sky blue
2
1
Continu-
ity
No Con-
tinuity
YES
Replace the starting
circuit cut-off relay.
NO
NOTE:
When you switch the “–” and “+” leads of the
digital pocket tester the readings in the above
chart will be reversed.
S
Is the starting circuit cut-off relay (diode)
OK?