2005 Ski-Doo REV Series Shop Manual, Page 89Get this manual
Section 03 ENGINES Subsection 03 (ENGINE REMOVAL AND INSTALLATION)
A33C4MA A33C2FA
1Knock sensor connector
Detach upper thermostat hose from thermostat housing
Remove spark plugs and install the spark plug lift ring (PN 529 035 830) at the farthest spark plug hole