1992-1995 Kawasaki 750SX Service Manual, Page 110Get this manual
PUMP AND IMPELLER 10-9
Impeller Clearance
elmpel'ler clearance is critical to proper performanceIt the pump case and impeller are not visibly damag.ed, poor performance may be caused by too much impeller clearance ,To check impeller clearance, remove the gr.ate and insert feel,er gauge [Abetween the tip of the impeller blade [8] and the pump case