Yamaha YFM250RX 2008 Service Manual page 284

EBS01054
6. Starter relay
• Disconnect the starter relay coupler from
the wire harness.
• Connect the pocket tester (Ω × 1) and bat-
tery (12 V) to the starter relay as shown.
Positive battery terminal → blue/black
Negative battery terminal →
Positive tester probe → red
Negative tester probe → black
R
B
• Does the starter relay have continuity
between red and black?
YES
EBS01041
7. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
YES
ELECTRIC STARTING SYSTEM
yellow/black
R R
Y/B L/B
NO
Replace the starter
relay.
NO
Replace the main
switch.
7-17
EBS01042
8. Engine stop switch
• Check the engine stop switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the engine stop switch OK?
YES
EBS01046
9. Neutral switch
• Check the neutral switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the neutral switch OK?
YES
EBS01056
10. Clutch switch
• Check the clutch switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the clutch switch OK?
YES
EBS01057
11. Start switch
• Check the start switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the start switch OK?
YES
ELEC
NO
Replace the handle-
bar switch.
NO
Replace the neutral
switch.
NO
Replace the clutch
switch.
NO
Replace the handle-
bar switch.