1970-1979 Ski-Doo Snowmobiles Service Manual, Page 138Get this manual

1970-1979 Ski-Doo Snowmobiles Service Manual, Page 138

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POWER TRAIN gap is present between end of chaincase flange and oil sealcOn 1970 models, adjust tensioner for Y4 in(6.4mm) chain deflection measured through chaincaseinspectionhole (Figure22)dPerform P