Yamaha 2004 YP400, Service Manual, Page: 356 / 417

8 - 12
– +
ELEC
IGNITION SYSTEM
EAS00750
YES NO
EAS00752
YES
NO
EAS00753
YES NO
9. Engine stop switch
• Check the engine stop switch for continu-
ity.
Refer to “CHECKING THE SWITCHES”.
• Is the engine stop switch OK?
Replace the right
handlebar switch.
10.Sidestand switch
• Check the sidestand switch for continuity.
Refer to “CHECKING THE SWITCHES”.
• Is the sidestand switch OK?
Replace the side-
stand switch.
11.Starting circuit cut-off relay
• Remove the starting circuit cut-off relay.
• Connect the pocket tester (
Ω ×
1) to the
starting circuit cut-off relay terminals as
shown.
• Check the starting circuit cut-off relay for
continuity.
Positive tester probe
→
blue/yellow
1
Negative tester probe
→
red/black
2
Continuity
Positive tester probe
→
red/black
2
Negative tester probe
→
blue/yellow
1
No
continuity
NOTE:
_
When you switch the positive and negative
tester probes, the readings in the above chart
will be reversed.
• Are the tester readings correct?
Replace the starting
circuit cut-off relay.
1
2
G / W
R / B
L / Y
G / Y