1989 Ski-Doo Repair Manual, Page 150Get this manual

1989 Ski-Doo Repair Manual, Page 150

Section 02 ENGINE Sub-section 06 (536 ENGINE TYPE)
CAUTION: Clrclips must not move freely after installation if soreplace them
12,21, Cylindercylinder head stud
Because of cap nuts, cylinder head studs have to be screwed into the cylinder so that they do not protrude by more than 43 mm 0.70 in)If it is not possible to obtain this length, add washer between cylinder head and cap nutShorter threaded part of stud should be screwed into cylinder
11.70 inl

Shorter Ii'l!Qadcd pan