1997 Ski-Doo Factory Shop Manual Volume Two, Page 65Get this manual
Sub-Section 02
Section 03 ENGINE (443 AND 503 ENGINE TYPES)
' to be removed to give access to MAG piston pin with the puller' and rings are available if necessaryINSPECTION
NOTE: 0.25 and 0.5 mm oversized piston
NOTE: The PTO cylinder or fan housing have
Refer to ENGINE DIMENSIONS MEASUREMENT 03-04A21C04A
ASSEMBLY
443 Engine When reinstalling original needle bearings, make sure that 31 needles are inserted between expansion sleeve and locating sleeve1