1986 Ski-Doo Factory Shop Manual, Page 267Get this manual
Section 03 TRANSMISSION Sub-section 03 (DRIVE PULLEY)
SQUARE SHAFT WITH THREE COUNTERWEIGHT ASSEMBLIES
Counterweight ass'y (all except,
11061bl-inl
Alpine Safari Grand Luxe LC Formula SPMX
1142 1b[.IoI
4 140 Ibloni
163 Iblof1)