1996 Ski-Doo Shop Manual, Volume 3, Page 84Get this manual
Section 04 ENGINE b-S ectio 01 (503 GIN YPE)
NTh follo ing proc dure can on ithout re ovin th ngin fro chassis
N0.25 and 0.5 oversiz ed piston and rings are available if ne ce ssary
CLE NIN G
Discard all gaske tsUse Gasket over (P413 7085 00) to cle an mating surfacesCle an all etal com pone nts in non-ferrous tal cleanerScrap off carbon orm ation fro cylind er xhaust port, cylinder he ad and piston dom using oode spatulaNThe le ttersUSand arro on the piston dom ust visible after cleaningCle an the piston ring grooves ith groove cle aner tool, or ith pie ce of broke ring
IN SPE TIO N
Re fer to GIN DIM NSIO NS SURE NT 04-04
15,17, Pisto and Circlip
At asse bly, place th pistons over the conne cting rods ith the lett ersUS(over an arrow on the piston dom e) facing in the direction of th exhaust portAUS
15,16,17, Pisto n, Pisto Pin and Circlip
Place cle an cloth over crankcase to pre vent circlips fro falling into crankcas Th ith pointe tool inserte in piston notch, re move circlip from pistonTo re ove piston pin, use piston pin puller (P529 0210 00) as folloFully scre puller handle Insert puller nd into piston pin Scre (LH threads) xtracting nut Hold puller firmly and rotate puller handle counterclock ise to pull piston pinA 01C01 A