Yamaha MT-09 2021 - Page 412

8-57
ELECTRICAL COMPONENTS
2. Connect the digital circuit tester (Ω) and bat-
tery (12 V) to the relay terminal as shown.
Check the relay operation.
Out of specification → Replace.
Starter relay
Relay unit (starting circuit cut-off relay)
Relay unit (fuel pump relay)
Radiator fan motor relay
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Relay operation
Continuity
(between “3” and “4”)
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between “3” and “4”)
L/WR/W
12
3
4
R
L/W R
Sb B
Sb/W
L L/B
R
L/W W
WBr
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between “3” and “4”)
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between “3” and “4”)
R
L/W R
Sb B
Sb/W
L L/B
R
L/W W
WBr
4123
R
G/Y
R/B
R