1993 Yamaha YFM80D Badger Supplementary Service Manual, Page 205Get this manual
CHARGING SYSTEM TROUBLESHOOTING
1 THE BATTERY IS NOT CHARGEDProcedure Check; 1Fuse 2Battery 3Charging voltage
4Startor coil resistance 5Wiring connection (entire charging system)
Remove the following parts before troubleshooting1) Seat Use the following special tool(s) in this troubleshooting
Inductive tachometer:
YU-08036 90890-03113 Pocket tester:
YU-03112 90890-03112
NO CONTINUITY