1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 135Get this manual
IIANOSJP I(0) BATTERY INSPECTION Charging method using constant-voltage type charger
Measure the open-circuit voltage prior to charging
Voltage should be measured 30 minutes after the machine is stopped
Connect charger and AMP meter to the battery and start charging
Make sure the current is yEr-S _f higher than the standard charging current written on the battery
Charge the battery until the battery's charging voltage is 15 VNOTE: