Yamaha YFM7FGPW Service Manual page 424

EBS01052
4. Starting circuit cut-off relay
• Remove the starting circuit cut-off relay
from the wire harness.
• Connect the pocket tester (Ω × 1) and bat-
tery (12 V) to the starting circuit cut-off
relay as shown.
Positive battery terminal → red/black 1
Negative battery terminal →
Positive tester probe → blue/white 3
Negative tester probe → blue/black 4
3
4
2
B/Y R/B
L /B
L/W
• Does the starting circuit cut-off relay have
continuity between blue/white and blue/
black?
YES
ELECTRIC STARTING SYSTEM
black/yellow 2
+
NO
Replace the starting
circuit cut-off relay.
9 - 19
EBS01054
5. Starter relay
• Remove the starter relay from the wire
harness.
• Connect the pocket tester (Ω × 1) and bat-
tery (12 V) to the starter relay as shown.
Positive battery terminal → brown 1
Negative battery terminal → blue/white 2
Positive tester probe → red 3
Negative tester probe → black 4
3
R
B
4
• Does the starter relay have continuity
between red and black?
YES
– +
ELEC
Br/B
L/W Br
1 2
NO
Replace the starter
relay.