Yamaha YFM660RN Service Manual page 318

TROUBLESHOOTING
IF THE FAN MOTOR DOES NOT MOVE:
Procedure
Check:
1.Fuse
2.Battery
3.Main switch
4.Fan motor
5.Circuit breaker (fan motor)
OTE:
Remove the following part(s) before trouble-
shooting.
1)Seat
2)Front fender
Use the following special tool(s) for trouble-
shooting.
EB802011
1.Fuse
Refer to "CHECKING THE SWITCH".
EB802012
2.Battery
Check the battery condition.
Refer to "CHECKING THE BATTERY" in
CHAPTER 3.
Open-circuit voltage:
12.8 V or more at 20 °C (68 °F)
3.Main switch
Refer to "CHECKING THE SWITCH".
*
CONTINUITY
CORRECT
CORRECT
8 - 37
COOLING SYSTEM
6.Thermo switch 1
7.Wiring connection
(the entire cooling system)
Pocket tester:
P/N. YU-03112, 90890-03112
NO CONTINUITY
Replace the fuse.
INCORRECT
Clean the battery terminals.
Recharge or replace the battery.
INCORRECT
Replace the main switch.
– +
ELEC