1986 Ski-Doo Factory Shop Manual, Page 298Get this manual
Section 03 TRANSMISSION Sub-section 04 (DRIVEN PULLEY)
4, Drive belt deflection adjustment set screws
At assembly, the Allen screws must be set in accorda nce with the drive belt deflection specification (see section 03, sub-section 02 Drive Beltl
10,28,29, Slider shoe, spacers
When reassembling outer cam, always check thaI the slider shoes fully contact the sliding pulley camIf the slider shoes exceed the edge of the sliding pulley cam ar are inlying more than 1.0 mm (.039"1,correct the situation by adding or removing spacers of mm or mm, as required, between the outer cam and the retaining half washers