2007-2010 Kawasaki Ultra 250X/260X/260LX PWC Factory Service Manual, Page 287Get this manual
9-14 COOLING AND BILGE SYSTEMS Cooling and Bilge System Flow Diagram
Check Valve Inspection (JT1500E9FIF9F Models)
The JT1500E9FIF9FModels have the water hose joint [A] with the check valve on the water box muffler [B]J 04021BSI
Remove the water box muffler (see Water Box Muffler Removal in the Exhaust System chapter) Remove the check valve (water hose joint) Shake the check valve [A] (water hose joint) and confirm whether the sound where the ball [B] moves isIf there is the sound perform the next procedureIf there is not the sound replace it