1997 Ski-Doo Factory Shop Manual Volume One, Page 141Get this manual
Section 04 TRANSMISSION Sub-Section 04 (DRIVEN PULLEY)
' cam, shoes, etc can be serviced without removing the whole driven pulley from chaincaseREMOVAL
To remove driven pulley from chaincase, follow this procedureRemove belt guard and drive belt from vehicleRemove brake support no13 from chaincase with brake ass'yFree countershaft support no1 from support clampTo remove driven pulley support use support puller (P529 0135 00)
NOTEDriven pulley components (support,
Refer to the following procedures but neither remove brake caliper nor open chaincase for those cases
Disconnect oil injection supply line at injection pump and plug line to prevent drainingRemove screws retaining rear engine support to chassisTip engine forward just enough to allow driven pulley removal from chaincaseBlock in this positionNOTEIn some cases, chaincase retaining screws might have to be slackened to allow pivoting of chaincaseIn this case, note position of alignment shimsBesides, air intake silencer and oil injection reservoir might have to be slightly moved to get enough space to pull driven pulley'