1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 38Get this manual
1911 MODELS CARBURETOR SPECIFICATION CHART
CARBURETOR TILLOTSON HR73A HR74A HR75A HR76A H022B H022B HR69A HR40A HD20B H073A H020B 2xHD20B HR40A H066A HR16B HD20B
MAIN FUEL JET DIA.042"
LOW SPEED ADJ+
HIGH SPEED ADJ'H -OTURN TURN TURN TURN TURN TURN TURN TURN TURN TURN Y4 TURN Y4 TURN Y4 TURN Y4 TURN Y4 TURN Y4 TURN J!4 TURN
ELAN 250, 250E OL YMPIOUE 300 OL YMPIOUE 335, 335E