1985 Ski-Doo snowmobile Service Manual, Page 287Get this manual
Section 03 TRANSMISSION Sub-section 05 (PULLEY DISTANCEALIGNMENT)
Pulley alignment methods
Drive pulley alignment:
If drive pulley is too far in, remove drive pulley and add shim(s) on crankshaftShim PIN 504050400, 0.81 mm (032") thickness
CAUTION: Never use more than shims on crankT shaft WARNING: Always torque drive pulley bolt within specifications(See section 03-03)
Driven pulley alignment:
If driven pulley is too far in, add shim(s) between frame and chaincaseShim PIN 504050400,0.81 mm (.032") thickness1 111890" .0391
Citation LSE, Tundra, Tundra LT
4004003004
Pulley distance specification