2001 Yamaha YFM660 Raptor Factory Service Manual, Page 290Get this manual
IGNITION SYSTEM ELEC
Connect the pocket tester1k) to the ignition coilTester (+) lead Orange lead terminal Tester () lead Spark plug lead
Check that the secondary coil has the specified resistanceSecondary coil resistance: 6.329.48 at 20 (68 F) BOTH MEET SPECIFICATION Replace the ignition coilINCORRECT
7.Engine stop switch Refer to "CHECKING THE SWITCH"CORRECT
Replace the handlebar switch (left)
8.Main switch Refer to "CHECKING THE SWITCH"CORRECT