1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 30Get this manual

1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 30

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DRIVEN PULLEY SPRING TENSION 1970-71-72-73 MODELS
DRIVEN PULLEY (Spring Tension)

Elan 250 Elan 250T Elan 25055 Olympique 300 Olympique 335 Olympique 340 Olympique 400 Olympique 440