1997 Ski-Doo Factory Shop Manual Volume Two, Page 64Get this manual
Section 03 ENGINE Sub-Section 02 (443 AND 503 ENGINE TYPES)
' done without removing the engine from chassisCLEANING
Discard all gasketsUse Gasket Remover (PN 413 7085 00) to clean mating surfacesClean all metal components in non-ferrous metal cleanerScrape off carbon formation from cylinder exhaust port, cylinder head and piston dome using wooden spatulaNOTE: The letters "AUS" and arrow on the piston dome must be visible after cleaningClean the piston ring grooves with groove cleaner tool, or with piece of broken ring
NOTE: The following procedures can be
A21C06A
529 0210 00
1Expansion sleeve