2004-2009 Suzuki LT-Z250 Service Manual, Page 251Get this manual
ELECTRICAL SYSTEM
Make sure that air bubbles are coming up into each electrolyte container, and leave it in this position for more than 20 minutes
NOTE: If no air bubbles are coming up from filler port, tap the bottom of the electrolyte container two or three timesNever remove the container from the batteryAfter confirming that the electrolyte has entered the battery completely, remove the electrolyte container from the batteryWait for more than 20 minutes