Yamaha 2004 YP400, Service Manual, Page: 362 / 417

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ELEC
ELECTRIC STARTING SYSTEM
EAS00750
YES NO
EAS00751
YES
NO
EAS00752
YES
NO
EAS00764
YES
NO
EAS00766
YES
NO
7. 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.
8. Brake light switch (front and rear)
• Check the brake light switches for continu-
ity.
Refer to “CHECKING THE SWITCHES”.
• Is each brake light switch OK?
Replace the brake
light switch(s).
9. Sidestand switch
• Check the sidestand switch for continuity.
Refer to “CHECKING THE SWITCHES”.
• Is the sidestand switch OK?
Replace the side-
stand switch.
10.Start switch
• Check the start switch for continuity.
Refer to “CHECKING THE SWITCHES”.
• Is the start switch OK?
Replace the right
handlebar switch.
11.Wiring
• Check the entire starting system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
• Is the starting system’s wiring properly
connected and without defects?
The starting system
circuit is OK. Properly connect or
repair the starting
system’s wiring.