2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 126Get this manual

2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 126

CHECKING AND CHARGING THE BATTERY CHK ADJ

NOTE: Since MF batteries are sealed, it is not possible to check the charge state of the battery by measuring the specific gravity of the electrolyteTherefore, the charge of the battery has to be checked by measuring the voltage at the battery terminals1Remove: seat Refer to "SEAT, FENDERS AND FUEL TANK"
2Disconnect: battery leads (from the battery terminals) CAUTION:

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