1985 Ski-Doo snowmobile Service Manual, Page 281Get this manual
Section 03 TRANSMISSION Sub-section 04 (DRIVEN PULLEY)
ADJUSTMENT
6, Spring
Spring torsional pre-load To adjust spring pre-load displace spring end accordingly
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7, Cam slider shoe
When replacing slider shoes, always install new set of three shoes to maintain balanced pressures on the cam
INSTALLA TION