Bombardier SeaDoo 1989 factory shop manual, Page 68Get this manual
Section 04 COOLINIG SYSTEIM Sub-section 03 (CAREFLUSHING)
1When servicing hullljet pump, always rotate watercraft conterclokwire (seen from the rear)Rotating watercraft clockwire could alllow residual water in tuned pipe to enter the engine and cause damage
6Check overheat beeper operation by jumping terminal
of thermosensor wire to groundBeeper must operate
NOTETether cord cap must be over its switch so that beeper works
FLUSHING
When the watercraft is operated in unclean water and particularly in salt water, flushing of cooling system is necessary