2001 Yamaha YFM660 Raptor Factory Service Manual, Page 295Get this manual
ELECTRIC STARTING SYSTEM
3.Starter motor
C0NTINUITY
WARNING
Connect the battery positive terminal and starter motor cable using jumper lead Check the operation of the starter motor
A wire that is used as jumper lead must have the equivalent capacity or more as that of the battery lead, otherwise the jumper lead may burnThis check is likely to produce sparks, so be sure that no flammable gas or fluid is in the vicinity
DOES NOT TURN