2001 Yamaha YFM660 Raptor Factory Service Manual, Page 291Get this manual
IGNITION SYSTEM
C0NTINUITY
10.Chargingrotor rotation direction detection coil resistance
Disconnect the AC magneto coupler from the wire harnessConnect the pocket tester100) to the chargingrotor rotation direction detection coil terminalTester (+) lead Red terminal Tester () lead WhiteBlue terminal 2
Check the chargingrotor rotation direction detection coil for the specified resistanceRotor rotation direction detection coil resistance: 0.0690.085 at 20 (68 F) (Red WhiteBlue) MEETS SPECIFICATION