2004-2006 Kawasaki 900 STX Jet Ski Service Manual, Page 136Get this manual
PUMP AND IMPELLER 11-13 Pump and Impeller
Install new bearing into the pump case [A] as far as it will goSpecial ToolBearing Driver Set: 57001-1129 [B]
Visually inspect the pump shaft O-rings [A], and replace if necessaryO-ring over the Install thethe O-ring with pump shaft [B]Grease high-grade water-resistance