Checking The Relays - Yamaha YZ 2017 Series Owner's Service Manual

12.8 V or more --- Charging is complete.
12.7 V or less --- Recharging is required.
Under 12.0 V --- Replace the battery.
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6. Install:
• Battery
7. Connect:
• Battery leads
(to the battery terminals)
ECA
NOTICE
First, connect the positive battery lead "1",
and then the negative battery lead "2".
8. Check:
• Battery terminals
Dirt  Clean with a wire brush.
Loose connection  Connect properly.
9. Lubricate:
• Battery terminals
Recommended lubricant
Dielectric grease
10.Install:
• Seat
• Side cover (left/right)
Refer to "GENERAL CHASSIS" on page 4-
1.
EASB29B351

CHECKING THE RELAYS

Check each switch for continuity with the pock-
et tester. If the continuity reading is incorrect,
replace the relay.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
1. Disconnect the relay from the wire harness.
2. Connect the pocket tester (  1) and bat-
tery (12 V) to the relay terminal as shown.
Check the relay operation.
Out of specification  Replace.
ELECTRICAL COMPONENTS
Starter relay
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
2
1
Main relay
3
4
2
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Starting circuit cut-off relay
3
4
2
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
8-67
3
R/W R
Br/W
L/G
4
2
Result
Continuity
(between "3" to "4")
1
L/R R
Br
R,R/W
Result
Continuity
(between "3" to "4")
1
G/B
L/B
L/G,L/W
1