1997 Ski-Doo Factory Shop Manual Volume One, Page 128Get this manual
Section 04 TRANSMISSION Sub-Section 03 (DRIVE PULLEY)
GENERAL
Some drive pulley components (return spring, calibration disk) can be changed to improve vehicle performance in high altitude regionsThe High Altitude Technical Data booklet (P484 0648 00 and 484 0545 00 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 be performed by an authorized Bombardier snowmobile dealer, or other such qualified personSub-component installation and assembly tolerances require strict adherence to procedures detailed;
A05D0KA
529 0314 00