1983 Ski-Doo Shop Manual, Page 146Get this manual
SECTION 03 TRANSMISSION SUB-SECTION 03 (DRIVE PULLEY) )DISASSEMBLYASSEMBLY
Shouldered pin bushings must be installed in outer half as per illustration
_ CAUTION: These models are equipped with drive pulleys of METRIC dimensions
REMOVAL:
To remove drive pulley, proceed as follows: Lock the crankshaft by using one of the following method: Insert the crankshaft locking tool PIN 420876640 into the impulse hole of the engineSlowly rotate the crankshaft until it locks into position_ CAUTION: Do not use any type of pin other than the tool PIN 420 876 640(TYPICAl)
To lock crankshaft
Bushing shoulder