2000-2001 Kawasaki 1100 STX D.I. Jet Ski Factory Service Manual., Page 184Get this manual
PUNMPAND IMPELLER 10-13 Pump and Impeller
Pump and Impeller Inspection Examine the impeller [A] If there is pitting, deep scratches, nicks or other damage, replace the
impeller,
C 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: 147.5 Service Limit: