1986 Ski-Doo Factory Shop Manual, Page 216Get this manual
Section 02 ENGINE Subsection10 (ENGINE DIMENSIONS MEASUREMENT) - Install the bearing retainer into Its groove on MAG sideInstall bearing retainer into Its groove
CRANKCASEROTARY VALVE GAP
ENGINE TYPE
All 1986 liquid cooled
MINIMUM
0.27 mm (O.011"}
MAXIMUM
0.48 mm (0.019")
To measure this gap use feeler gage inserted between rotary valve and upper crankcase with the rotary valve cover in place without it's O-ringCheck the most sur face as possibleFollow the same procedure with the lower crankcase- Measure the gap between the bearing retainer and the