Checking The Relays - Yamaha WR125R 2009 Service Manual

tery charger lead clip may generate heat in
the contact area and a weak clip spring may
cause sparks.
• If the battery becomes hot to the touch at
any time during the charging process, dis-
connect the battery charger and let the bat-
tery cool before reconnecting it. Hot
batteries can explode!
TIP
Replace the battery whenever:
• battery voltage does not rise to specification or
bubbles fail to rise during charging,
• sulphation of one or more battery cells occurs
(as indicated by the battery plates turning white
or material accumulating in the bottom of the
battery cell),
• specific gravity readings after a long, slow
charge indicate that one battery cell's charge is
lower than the rest,
• warpage or buckling of the battery plates or in-
sulators is evident.
8. Check:
• Battery breather hose and battery vent
Obstruction → Clean.
Damage → Replace.
9. Connect:
• Battery breather hose "1"
1
ECA22B1018
NOTICE
When checking the battery, make sure the
battery breather hose is properly installed
and routed correctly. If the battery breather
hose is positioned so as to allow electrolyte
or hydrogen gas from the battery to contact
the frame, the vehicle and its finish may be
damaged. Refer to "CABLE ROUTING" on
page 2-35.
10.Install:
• Battery
11.Check:
• Battery terminals
Dirt → Clean with a wire brush.
ELECTRICAL COMPONENTS
Loose connection → Connect properly.
12.Connect:
• Battery leads
(to the battery terminals)
ECA22B1019
NOTICE
First, connect the positive battery lead "1",
then the negative battery lead "2".
1
13.Lubricate:
• Battery terminals
Recommended lubricant
Dielectric grease
14.Install:
• Battery cover
Refer to "GENERAL CHASSIS" on page 4-1.
EAS28040

CHECKING THE RELAYS

Check each switch for continuity with the pocket
tester. If the continuity reading is incorrect, re-
place 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 (Ω × 1) and battery
(12 V) to the relay terminal as shown.
Check the relay operation.
Out of specification → Replace.
8-67
2