1979 Ski-Doo Supplementary Shop Manual, Page 7Get this manual
SECTION 01
SUB-SECTION 02 (SLIDE SUSPENSION)
ADJUSTMENT
Track tension
Lift rear of vehicle and support it off th groundAllow track to extend normally There msut be gap of 13 mm (12") between slider shoe and bottom inside of track, on each side
Track alignment
After track tension has been corrected start the engine and acce lerate slightly so that track turns slowlyCheck that track is well centeredThe distance between the edges of the track guides and the slider shoes should be equal on both sides