Yamaha Wolverine YX70EPNG, Service Manual

Page: 472 / 503

ELECTRICAL COMPONENTS
9-97
▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
Charging method using a constant volt-
age charger
a. Measure the open-circuit voltage prior to
charging.
TIP
Voltage should be measured 30 minutes after
the engine is stopped.
b. Connect a charger and ammeter to the bat-
tery and start charging.
c. Make sure that the current is higher than the
standard charging current written on the bat-
tery.
TIP
If the current is lower than the standard charging
current written on the battery, this type of battery
charger cannot charge the VRLA (Valve Regu-
lated Lead Acid) battery. A variable voltage
charger is recommended.
d. Charge the battery until the battery’s
charging voltage is 15 V.
TIP
Set the charging time at 20 hours (maximum).
e. Measure the battery open-circuit voltage after
leaving the battery unused for more than 30
minutes.
▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
6. Install:
• Battery
7. Connect:
• Battery leads
(to the battery terminals)
NOTICE
ECB01330
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. Install:
• Hood
Refer to “GENERAL CHASSIS (6)” on page
4-12.
EBS30298
CHECKING THE RELAYS
Check each switch for continuity with the pocket
tester. If the continuity reading is incorrect, re-
place the relay.
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.
A. Open-circuit voltage (V)
B. Time (minutes)
C. Charging
D. Ambient temperature 20 °C (68 °F)
E. Check the open-circuit voltage.
12.8 V or more --- Charging is complete.
12.7 V or less --- Recharging is required.
Under 12.0 V --- Replace the battery.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
1 2
1