1989 Ski-Doo Repair Manual, Page 112Get this manual
Section 02 ENGINE Sub-section 04 (467 ENGINE TYPE)
NOTE: The rotary valve is asymmetricalthereforeat assembly try positioning each side of it on gear to determine bes1 installation positionRotarv valve
Iridg81 MClgn810
Using angle finder, mark crankcase at 132 from bottom edge of magneto side inlet port
howsing mark
rT1liSt be at TOC
side piston
.4 0.a 0010Z1