1997 Ski-Doo Factory Shop Manual Volume One, Page 165Get this manual
Section 04 TRANSMISSION Sub-Section 07 (CHAINCASE)
The chain length may be affected depending the combination of lowerupper sprockets as follows :
GEAR RATIOCHAIN LENGTH CHART GEAR RATIO 1127 1425 CHAIN LENGTH (LINKS) 62 62 STANDARD ON OPTTundra II LT
INSTALLATION
Reverse removal procedurePay particular attention to the followingTorque castellated nut no7 to 14 Nm (124 lbfin), slacken then retorque to 0.5-2.5 Nm (522 lbfin)In case of vehicle equipped with an 11 teeth sprocket, check the wear of protectors no8Replace if requiredGrease new gasket no20 with petroleum jelly, or other suitable product, and install gasket making sure gasket it does not shift from its correct positionTighten bolts evenlyNOTEBottom pan has an emboss below chaincase housing to ease installation
OPT= OptionalChaincase protector no8 is mandatory with this sprocketCAUTIONSuch modifications should only be performed by experienced mechanics since they can greatly affect vehicle performanceNOTEFor high altitude regions, the High Altitude Technical Booklet (P484 0648 00 and484 0545 00 for binder) gives information about calibration according to altitude-