1987-2003 Yamaha YFZ350 Banshee supplementary service manual, Page 232Get this manual
IGNITION SYSTEM
1 ELEcE1
7Ignition coil resistance test Disconnect the ignition coil leads (Orange and Black and spark plug lead Connect the Pocket Tester (YU-03112) as shownMeasure the primary and secondary coil resistances
Primary Coil Resistance 0.28 -0.38Q at 20 (68OF) Secondary Coil Resistance