2001 Ski-Doo Factory Shop Manual Volume Three, Page 106Get this manual
Section 04 ENGINE Subsection 02 (493, 593, 693 AND 793 ENGINE TYPES)
CAUTION: Circlips must not move freely after installation; if so, replace themCoat both sides of new cylinder gasket with Loctite 518 then, install it on crankcaseLoosely install cylindersInstall exhaust manifold then, tighten cylinder retaining screws to 29 Nm (21 lbfft) in crisscross sequenceAt assembly, torque cylinder head screws to 29 Nm (21 Ibfft) in the following illustrated sequence5 11 12 10
With blade stopper no16 removed, check reed valve for proper tightnessThere must be no play between blade and valve body when exerting finger pressure on blade at blade stopper locationIn case of play, turn blade upside down and recheckIf there is still play, replace blade andor valve body