2003 Kawasaki KLF250 Service Manual., Page 257Get this manual
ELECTRICAL SYSTEM 16-15 Battery
Battery Charging RateTime Table
Battery Troubleshooting Guide
Plates Sediment Voltage Electrolyte Level Good Battery (+) Chocolate color (-) gray none, or small amount Suspect Battery white (sulphated);plates broken or corroded sediment up to plates, causing short below 12.6 below lower level line Action Replace Replace Test charge Fill and test charge
above 12.6 between upper and lower level lines above 1.240 in all cells; no Specific Gravity two cells more than 0.020 different