1978 Ski-Doo Shop Manual, Page 26Get this manual
SECTION 01 SUB-SECTION 05 (TRACK)
Alignment (Slide Suspension)
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 closest to slideTighten lock nuts and recheck alignment