1985 Ski-Doo snowmobile Service Manual, Page 427Get this manual
Section 05 SUSPENSION Sub-section 08 (TRACK)
To adjust loosen the rear idler wheel retaining screw (not required on Citation LS, LSE, models) and the adjuster bolt lock nut; then loosen or tighten the adjuster bolts located on the inner side of the rear Idler wheels
Alignment (slide suspension all models)
With rear of vehicle supported off the ground, start engine and allow the track to rotate slowlyCheck that track IS well centered and turns evenlyTo correct, stop engine then loosen the lock nuts and tighten the adjuster bolt on side where guides are farthest to slideTighten lock nuts and recheck alignment
(TYPICAL)
AOO1005003
NOTE: If the track tension is too loose, the track will have tendency to thump
Alignment (bogie wheel all models)
With rear of vehicle supported off the ground, start engine and allow the track to rotate slowly Check if track is well centered and turns evenly on rear sprocketsDistance between edge of track and link plate must be equal on both sides(If applicable, ensure link plate springs are in the middle position of the position slotted anchors) WARNING: Before checking track alignment, ensure that the track is free of all particles which could be thrown out while track is rotatingKeep hands, feet, tools and clothing clear of track(TYPICAL)Slide