2004 Skidoo ZX Series Service Manual, Page 292Get this manual
Section 05 ENGINES (4-TEC) Subsection 08 (CRANKCASE)
Bearing Installation Procedure NOTE: Unless otherwise instructed, never use hammer to install plain bearingsUse press machine onlyInstall plain bearings with the proper plain bearing installerremover (PN 529 035 914)Fit the plain bearings with Petamo grease (PN 420 899 271)NOTE: Carefully press-in the plain bearings no18 and no19 in the same direction as during disassembly, from the outside towards the insideSupport PTO cover with suitable support with straight surface, in order to prevent damage of the sealing surfaceCAUTION: Mark position of oil bore in plain bearing on crankcase halfAlign mark on plain bearing installerremover with mark on crankcase halfWrong oil bore position will stop oil supply to plain bearing and will damage the engine2