Yamaha XP500 Service Manual page 499

EAS00761
6. Starter relay
• Remove the starter relay.
• Connect the pocket tester (Ω × 1) and bat-
tery (12 V) to the starter relay terminals as
shown.
XP500
Positive battery terminal → black 1
Negative battery terminal →
XP500A
Positive battery terminal → red/white 1
Negative battery terminal →
Positive tester probe → red 3
Negative tester probe → black 4
• Does the starter relay have continuity
between red and black?
YES
EAS00749
7. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
YES
ELECTRIC STARTING SYSTEM
blue/white 2
blue/white 2
NO
Replace the starter
relay.
NO
Replace the main
switch/immobilizer
unit.
EAS00750
8. Engine stop switch
• Check the engine stop switch for continu-
ity.
Refer to "CHECKING THE SWITCHES".
• Is the engine stop switch OK?
EAS00752
9. Sidestand switch
• Check the sidestand switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the sidestand switch OK?
EAS00751
10.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?
8 - 21
ELEC
YES
Replace
handlebar switch.
YES
Replace the
stand switch.
YES
Replace the brake
light switch(es).
– +
NO
the right
NO
side-
NO