Kymco MO KXR 50 Service Manual - chap 14 (imp ricarica)
14. BATTERY/CHARGING SYSTEM/
A.C. GENERATOR
14-0
Mongoose/KXR 90/50
14
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BATTER/CHARGING SYSTEM/
A.C. GENERATOR
__________________________________________________________________________________
SERVICE INFORMATION -------------------------------------------- 14- 2
BATTERY REMOVAL ------------------------------------------------- 14- 4
CHARGING SYSTEM -------------------------------------------------- 14- 6
REGULATOR/RECTIFIER -------------------------------------------- 14- 7
A.C. GENERATOR CHARGING COIL-------------------------------- 14- 8
A.C. GENERATOR LIGHTING COIL-------------------------------- 14- 8
RESISTOR INSPECTION---------------------------------------------- 14- 8
A.C. GENERATOR ----------------------------------------------------- 14- 8
14
14. BATTERY/CHARGING SYSTEM/
A.C. GENERATOR
14-1
Mongoose/KXR 90/50
CHARGING CIRCUIT
Regulator/Rectifier
A.C. Generator
Regulator/
Rectifier
A.C. Generator
Headlight Switch
YRG
Battery
12V4AH
Y
Auto
Bystarter
G/B
W
G
90cc:
12W5W
50cc:
10.2W5W
14. BATTERY/CHARGING SYSTEM/
A.C. GENERATOR
14-2
Mongoose/KXR 90/50
SERVICE INFORMATIONN
GENERAL INSTRUCTIONS
• The battery can be charged and discharged repeatedly. If a discharged battery is not used for a
long time, its service life will be shortened. Generally, the capacity of a battery will decrease after
it is used for 2_ 3 years. A capacity-decreased battery will resume its voltage after it is recharged
but its voltage decreases suddenly and then increases when a load is added.
• When a battery is overcharged, some symptoms can be found. If there is a short circuit inside the
battery, no voltage is produced on the battery terminals. If the rectifier won‘t operate, the
voltage will become too high and shorten the battery service life.
• If a battery is not used for a long time, it will discharge by itself and should be recharged every 3
months.
• A new battery filled with electrolyte will generate voltage within a certain time and it should be
recharged when the capacity is insufficient. Recharging a new battery will prolong its service life.
• Inspect the charging system according to the sequence specified in the Troubleshooting.
• Do not disconnect and soon reconnect the power of any electrical equipment because the electronic
parts in the regulator/rectifier will be damaged. Turn off the ignition switch before operation.
• It is not necessary to check the MF battery electrolyte or fill with distilled water.
• Check the load of the whole charging system.
• Do not quick charge the battery. Quick charging should only be done in an emergency.
• Remove the battery from the motorcycle for charging.
• When replacing the battery, do not use a traditional battery.
• When charging, check the voltage with an voltmeter.
SPECIFICATIONS
Item
Standard
ATV Name &Type
Mongoose/KXR 90
Mongoose/KXR 50
Capacity/Model
12V4AH
Voltage
Fully charged
13.1V
Battery
(20¢J )
Undercharged
12.3V
Charging current
STD: 0.4A Quick: 4.0A
Charging time
STD: 5_ 10hr Quick: 30min
A.C. Generator
Capacity
150W
Charging
14.5±0.5V
Regulator/Rectifier
The battery electrolyte (sulfuric acid) is poisonous and may seriously damage the skin and
eyes. Avoid contact with skin, eyes, or clothing. In case of contact, flush with water and get
prompt medical attention
14. BATTERY/CHARGING SYSTEM/
A.C. GENERATOR
14-3
Mongoose/KXR 90/50
TESTING INSTRUMENTS
Electric tester: YF-3051
TROUBLESHOOTING
No power Intermittent power
• Dead battery • Loose battery cable connection
• Disconnected battery cable • Loose charging system connection
• Fuse burned out • Loose connection or short circuit in
• Faulty ignition switch
lighting system
Low power Charging system failure
• Weak battery • Loose, broken or shorted wire or connector
• Loose battery connection • Faulty regulator/rectifier
• Charging system failure • Faulty A.C. generator
• Faulty regulator/rectifier
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