2004 Skidoo ZX Series Service Manual, Page 137Get this manual
Section 04 ENGINES (2-STROKE) Subsection 02 (593, 593 HO SDI, 693 AND 793 SDI ENGINE TYPES)
8, Spring
PRELOAD IN ENGINE TYPE SPRING PN WIRE COLOR DIAmm (in) FREE LENGTH mm (in) (LBF) AT COMPRESSED LENGTH OF 14 mm (.551 in) 593 and 593 HOSDI 693 793 SDI 420 239 944 420 239 948 420 239 941 Brown Black Dark blue 0.9 (.035) 0.8 (.031) 0.8 (.031) 48.5 (1.91) 42.5 (1.67) 52.5 (2.07) 15.9 (3.56) 7.3 (1.64) 10.5 (2.36)
2,3,4, Cylinder Head Cover, Cylinder Head and Cylinder
Make sure parts sealing surfaces are flatRefer to LEAK TEST AND ENGINE DIMENSION MEASUREMENT and look for CHECKING SURFACE FLATNESSWhen installing new cageless bearing, replace half plastic cages with sleeveNOTE: All cageless bearings have 28 needles
ASSEMBLY
RAVE System
Apply sealing compound Dreibond (PN 420 297 906) in the groove of valve base and in the piston valve groove, then install bellowsInstall RAVE valve with its mention top as illustrated in the following photoA02C2GA