Troubleshooting - Yamaha YFM4FAR Service Manual

EB804010

TROUBLESHOOTING

IF THE BATTERY IS NOT CHARGED:
Procedure
Check:
1.Fuse (main)
2.Battery
3.Charging voltage
NOTE:
Remove the following
G
troubleshooting:
1)Seat
2)Fuel tank side panels
Use the following
G
troubleshooting.
EB802011
1.Fuse (main)
Refer to "CHECKING THE SWITCHES".
EB802012
2.Battery
Check the battery condition.
G
Refer to "CHECKING THE BATTERY" in
CHAPTER 3.
Open-circuit voltage:
12.8 V or more at 20 °C (68 °F)
EB804011
3.Charging voltage
Connect the engine tachometer to the
G
spark plug lead #1.
Connect the pocket tester (DC 20 V) to the
G
battery.
Tester (+) lead → Battery (+) terminal
Tester (–) lead → Battery (–) terminal
part(s) before
special tool(s) for
CONTINUITY
CORRECT
CHARGING SYSTEM
4.Charging coil resistance
5.Wiring connections
(the entire charging system)
Inductive self-powered tachometer:
P/N. YU-8036-B
Engine tachometer:
P/N. 90890-03113
Pocket tester:
P/N. YU-03112-C, 90890-03112
NO CONTINUITY
Replace the fuse.
INCORRECT
Clean the battery terminals.
G
Recharge or replace the battery.
G
9 - 22
– +
ELEC