Bombardier SeaDoo 1998 factory shop manual, Page 267Get this manual
Section 09 PROPULSION SYSTEM Subsection 02 (JET PUMP)
Impeller Condition
Condition of impeller no20, boot no15 and ring no16 can be quickly checked from underneath of the watercraftRemove grate and look through water inlet opening
F01J0EA
TYPICAL MEASURING FROM WATER INLET SIDE 1Feeler gauge
F01J0DA
TYPICAL 1Inspect impeller and boot