2003 Ski-Doo REV Series Factory Shop Manual, Page 211Get this manual
Section 06 ELECTRICAL Subsection 04 (BATTERY)
BATTERY
GENERAL
Absorbed Glass Mat (AGM) battery (YTX20L-BS, PN 515 175 759) is used for the SKI-DOO snowmobilesAGM battery is sealed, non-spillable and maintenance freeCAUTION: Should any electrolyte spillage occur, immediately wash off with solution of baking soda and water to prevent damage to vehicle components
CLEANING
Clean the battery, battery casing, cables and battery posts using solution of baking soda and waterRemove corrosion from battery cable terminals and battery posts using firm wire brushBattery top should be cleaned by soft brush and any grease-cutting soap or baking soda solution
REMOVAL
WARNING
Battery BLACK negative cable must always be disconnected first and connected last
WARNING
Never charge or boost battery while installed on vehicleOpen the right side panel of the vehicle