1983 Ski-Doo Shop Manual, Page 133Get this manual
SECTION 03 TRANSMISSION SUB-SECTION 01 (PULLEY GUARD)
PULLEY GUARD
DISASSEMBLY AND ASSEMBLY
NOTE: For additional information (ex exploded view) refer to the 1983 correspondent parts catalogue WARNING: Engine should be running only when belt guard andor pulley guard are well secured in place
Elan, Spirit and Alpine models
The length of the uncompressed retaining pin spring should not be less than 47 mm (1 78")An uncompressed front guard spring should not be less than 20 mm (13 16")When assembling adjust length to 17 mm (1116")