2004 Skidoo ZX Series Service Manual, Page 133Get this manual
Section 04 ENGINES (2-STROKE) Subsection 02 (593, 593 HO SDI, 693 AND 793 SDI ENGINE TYPES)
A32C97A A32C99A
Unscrew the Allen socket screws no22 then remove the RAVE valve base no132
1Guillotine 2Gasket 3Valve piston
Remove spring no10 retaining bellows no11 to valve piston