1988-2006 Yamaha ATV YFS200 Blaster service manual PDF download file., Page 206Get this manual
IGNITION SYSTEM Check the primary coil for specificated resistancePrimary Coil Resistance: 1.44-1.76Qat20C(680F Connect the Pocket Tester ($2 1K'to the ignition coilTester (+) Lead Spark Plug Lead Q) Tester (-) Lead Orange (2) Lead-
Check the secondary coil for specificated resistanceSecondary Coil Resistance: 5.28 7.92kQ at 20 (68' F)
OUT OF SPECIFICATION
Ignition coil faulty, replace it