2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 57Get this manual
Section 02 TROUBLESHOOTING GUIDE Subsection 04 (TRANSMISSION AND BRAKE SYSTEMS)
Symptom: LOOSENESS IS FELT IN DRIVE SYSTEM WHEN ACCELERATINGDECELERAT-
1Check drive chain tension- Drive chain is too looseAdjust2Check radial play of driven pulley- Worn key, keyway or splinesReplace