Yamaha YZFR1W 2007 Service Manual page 408

Relay unit (fuel pump relay)
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity/No continuity
Headlight relay (on/off)
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity/No continuity
Headlight relay (dimmer)
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
ELECTRICAL COMPONENTS
4. Negative tester probe
Result
Continuity/No continuity
Radiator fan motor relay
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity/No continuity
EAS4C81019
CHECKING THE TURN SIGNAL RELAY
1. Check:
• Turn signal relay input voltage
Out of specification → The wiring circuit
from the main switch to the turn signal relay
coupler is faulty and must be repaired.
Turn signal relay input voltage
DC 12 V
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the pocket tester (DC 20 V) to the
turn signal relay terminal as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
Blue/Red "1"
• Negative tester probe →
Ground
8-89