2003 Kawasaki 1100 STX D.I. Jet Ski Factory Service Manual, Page 190Get this manual
PUMP AND IMPELLER 11-13 Pump and Impeller
Pump and Impeller Inspection
impeller
Examine the impeller [A]If there is pitting, deep scratches, nicks or other damage, replace the
Minor nicks and gouges in the impeller blades can be removed with abrasive paper or careful filingSmooth leading edges are especially important to avoid cavitation
Measure the impeller outside diameterIf the impeller is worn smaller than the service limit, replace itImpeller Outside Diameter Standard: 147.5147.7 mm (5.7875.815 in Service Limit: 146.5 mm (5.768 in
the pump case [A] Examineare deep scratches inside the pump case, replace itIf there