Yamaha YXR70FX Service Manual page 447

EBS01054
4. 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 → blue/yellow 1
Negative battery terminal → red/yellow 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
ELECTRIC STARTING SYSTEM
Br/B
R/Y L/Y
1 2
NO
Replace the starter
relay.
9 - 17
EBS01054
5. Load control relay
• Remove the load control relay from the
wire harness.
• Connect the pocket tester (Ω × 1) and bat-
tery (12 V) to the load control relay as
shown.
Positive battery terminal → brown/red 1
Negative battery terminal → black 2
Positive tester probe → red 3
Negative tester probe → brown/blue 4
3
4
2
B Br/R
Br/L
R
• Does the load control relay have continuity
between red and brown/blue?
YES
– +
ELEC
+
NO
Replace the load
control relay.