1996 Ski-Doo Shop Manual, Volume 2, Page 122Get this manual
Section 04 ENGINE b-S ectio 06 (R TA RY VA LV E, and ERV OIR)
To Ti Rotary Valv actly to ecificatio ns
NIf esynchronization (out of spec is unkno n, install rotary valve to de terminate it be fore proce ding ith the follo ingFirst eth Turn crankshaft to bring piston Scribe arks of crankshaft and upp er crankcase ust align dTh es arks ere scribe hile de terminating de synchronizationInstall brass ar on rotary valve shaft ith its marke spline positions (spline s) ay for one de gre of desynchronizationTurn in the opposite direction of esynchronizationFor instance, rotary valve is retarde by 2.5, turn brass ear by 10 spline counterclock ise co th Turn crankshaft to bring piston Scribe arks of crankshaft and upp er crankcase ust align dTh es arks ere scribe hile de terminating de synchronizationF or ach gre of synchroniza tion, rotary valve shaft should turne in the opposit direction by about spline on th rotary valve ge arN ot position of rot ary valv ar ark brass gear disengage orm ear of crankshaft at re oval of rotary valve shaftFro this position, turn shaft accordingly th en reinstallFor instance, take valve advanced by 21 2