1996 Ski-Doo Shop Manual, Volume 1, Page 154Get this manual
Se ion 05 RAN SM SSI ON Sub-Section 02 (DRIVE PULLEY)
GENERAL
Some drive pulley components (return spring, calibration disk) can be changed to improve vehicle performance in high altitude regionsThe High Atitude Technical Data booklet (P 484062400 and 484054500 for binder) gives information about calibration according to altitudeCAUTIONSuch modifications should only be performed by experience mechanics since they can greatly affect vehicle performanceWARNINGAny drive pulley repairs must beperformed by an authorized Bombardier snowmobile dealer, or other such qualified personSubcomponent installation and assembly tolerances require strict adherence to procedures detailed
2, Fixed Half
To remove the fixed half, slide drive pulley puller (P5290231 00) over shaftAttach with nut and bolt, as illustratedThe fixed half can then be removed with 12 in ratchet(Unscrew counterclockwise)