1970-1979 Ski-Doo Snowmobiles Service Manual, Page 133Get this manual

1970-1979 Ski-Doo Snowmobiles Service Manual, Page 133

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CHAPTER SEVEN
aOn models not equipped with selfadjusting drive pulley (Table 3), tighten nut securing driven pulley and upper sprocket then back off nut y,; turnInstall cotter pin (Figure 20)CAU