Yamaha XVS250 2001 Service Manual page 289

EAS00760
12. Relay unit (Diode)
D Disconnect the relay unit from the coupler.
D Connect the pocket tester (Ω
starting circuit cutoff relay terminals as
shown.
D Measure the relay unit for continuity as
follws.
Tester positive probe 
blue/green
Tester negative probe 
blue/yellow
Tester positive probe 
blue/yellow
Tester negative probe 
blue/green
Tester positive probe 
light green
Tester negative probe 
blue/yellow
Tester positive probe 
blue/yellow
Tester negative probe 
lightgreen
IGNITION SYSTEM
1) to the
1
Continuity
2
2
No
continuity
1
3
Continuity
2
2
No
continuity
3
7-12
NOTE:
When you switch the "–" and "+" leads of the
digital pocket tester the readings in the above
chart will be reversed.
D Are the tester readings correct?
YES
EAS00754
13. Wiring
D Check the entire ignition system's wiring.
Refer to "CIRCUIT DIAGRAM".
D Is the ignition system's wiring properly con-
nected and without defects?
NO
Properly connect or
repair the ignition
system's wiring.
ELEC
NO
Replace the starting
circuit cut-off relay.
YES
Replace the ignitor
unit.