1974 Ski-Doo Shop Manual, Page 144Get this manual
Note: Adjustment ride and track tension and alignment are inter-relatedDo not adjust one without the otherAfter track tension has been corrected, start the engine and accelerate slightly so that track turns slowlyq,eck if track is well centered and turns evenlyTo correct, loosen the lock nut and tighten the adjuster bolt on side where track is closest to the frameTighten lock nut and recheck tensi and alignment 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