1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 39Get this manual
1972 MODELS CARBURETOR SPECIFICATION CHART
CARBURETOR TILLOTSON
MAIN FUEL JETDIA
LOW SPEED ADJYa -OTURN
HIGH SPEED ADJYa -OTURN TURN TURN TURN TURN TURN TURN TURN TURN
ELAN 250, 250E ELAN 292 55 OL YMPIOUE 300 OL YMPIOUE 335, 335E OL YMPIOUE 399, 399E NORDIC 440, 440E NORDIC640E T'NT292 T'NT340 T'NT440 T'NT640 T'NT775 T'NT400VALMONT440,440E ALPINE 440, 440E ALPINE640E