1970-1979 Ski-Doo Snowmobiles Service Manual, Page 40Get this manual
PERIODIC MAINTENANCE AND TUNE-UP Table TILLOTSON CARBURETOR SPECIFICATIONS (continued) Low Speed Adjustment (Turns)" High Speed Adjustment (Turns)"
Carburetor
Idle Speed (rpm)
T'NT (corr't 440 (1972) 440 (1973) 440 and Everest (1974-1975) 440 and Everest (1976) 400FA(1972) 340 F (1973-1974) 400 340 440 440 FA FA FA FA (1973-1974) (1975) (1974) (1975) HD-83A HD-109A HD138A HD-147A HD-104A (2) HR-14'9A (2) HD-123A (2) HR-168A (2) HRM-3A (2) HRM-5A (2) 1,4 11,4
1,500-1,800