1970-1979 Ski-Doo Snowmobiles Service Manual, Page 46Get this manual

1970-1979 Ski-Doo Snowmobiles Service Manual, Page 46

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TROUBLESHOOTING
carburetor jets and air passagesGasoline tends to lose its potency after standing for long periodsCondensation may contaminate it with waterDrain old gas and try starting with fr