1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 16Get this manual
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1973 MODEL
88 12" 29" 43" 34" 265 1070sq.in0.248 2001bs15" 1025 23 Watts 75 Watts 6060 823 M-175-T-l .020" .014" 018" No 3.5 gals 4.38 galsRegular 40 Pivoting
250E One 69mm 66mm 246