1997 Ski-Doo Factory Shop Manual Volume One, Page 61Get this manual
Section 03 ENGINE Sub-Section 02 (277 ENGINE TYPE)
When installing new needle bearing, insert needles with thrust washersInstead of expansion sleeve, needles are held in place by inner plastic cage halvesUse piston pin puller (P529 0210 00) to insert piston pinPlastic halves should come off pistonIf not, pull them using long nose pliers
A01C02A
1Piston notch 2Circlip break
A21C01A