Bombardier SeaDoo 1997 factory shop manual, Page 83Get this manual
Section 03 ENGINE Sub-Section 07 (ROTARY VALVE)
GENERAL
The following verification procedures such as clearance of rotary valve cover or rotary valve shaft gear backlash can be performed without removing engine from watercraftHowever engine must be removed from watercraft to work on rotary valve shaftcomponentsRefer to ENGINE 03-03 for engine removal procedureBottom end must be opened to remove rotary valve shaftRefer to ENGINE 03-06INSPECTION ON WATERCRAFT
Remove carburetor(s)Refer to FUEL SYSTEM 05-04NOTE: On the 717D engine (SP model), rotary valve cover and carburetor are removed as an assembly
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