2001 Yamaha YFM660 Raptor Factory Service Manual, Page 294Get this manual
ELECTRIC STARTING SYSTEM EB803020
TROUBLESHOOTING IF THE STARTER MOTOR FAILS TO OPERATE:
Procedure Check: 1.Fuse 2.Battery 3.Starter motor 4.Starter relay 5.Main switch 6.Engine stop switch
7.Start switch 8.Neutral switch 9.Clutch switch 10.Wiring connection (the entire starting system)
OTE: Remove the following part(s) before troubleshooting: 1)Seat 2)Front fender 3)Rear fender 4)Exhaust pipe Use the following special tool(s) for troubleshooting