Bombardier SeaDoo 1998 factory shop manual, Page 134Get this manual
Section 04 ENGINE Subsection 07 (ROTARY VALVE)
717 Engine To install rotary valve shaft in crankcase, use pusher (PN 290 876 605)Push shaft until it stops on bearing seat
A00C0YA
1Pusher
Push shaft until its stops on bearing seatF01D8OA
717 and 787 Engines
4, Snap Ring
Position snap ring so that its sharp edge faces outwards
13, Rotary Valve
The rotary valve controls the opening and closing of the inlet portsTherefore its efficiency will depend on the precision of its installationF01D34A