2001 Yamaha YFM660 Raptor Factory Service Manual, Page 318Get this manual
COOLING SYSTEM 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)
6.Thermo switch 7.Wiring connection (the entire cooling system)
OTE: Remove the following part(s) before troubleshooting1)Seat 2)Front fender Use the following special tool(s) for troubleshooting
Pocket tester: PNYU-03112, 90890-03112
EB802011