1999 Ski-Doo Factory Shop Manual Volume One, Page 193Get this manual
Section 05 TRANSMISSION Subsection 04 (DRIVEN PULLEY)
NOTE: Driven pulley components (support, cam, shoes, etc can be serviced without removing the whole driven pulley from chaincaseRefer to the following procedures but neither remove brake caliper nor open chaincase for those cases
DISASSEMBLY
Remove support no1 using suitable pullerInstall cam pusher (PN 529 012 900), reinstall circlipTighten cam pusher screws alternately then remove roll pin
REMOVAL
To remove driven pulley from chaincase, follow this procedureRemove guard and drive belt from vehicleRemove brake support no15 from chaincase with brake ass'yFree countershaft support no1 from support clamp
529 012 900
Chaincase
Open chaincase and drain oilUnlock and remove upper sprocketThe following is required to have enough space to remove driven pulley from chaincase: Loosen upper retaining screws of steering columnDisconnect carburetor boots from intake manifold and air intake silencerDisconnect impulse hose from engineDisconnect 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 positionNOTE: In 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 pulleyRemove bearing coneKnock driven pulley shaft with plastic hammer and pull driven pulley out.A18B07A