1980 Ski-Doo Shop Manual, Page 141Get this manual

1980 Ski-Doo Shop Manual, Page 141

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SECTION 03 SUB-SECTION 02, (ENGINES)
and heat the oil to 100'C (210'F) for to 10 minThis will expand bearings and ease installationInstall bearings with groove outwardNOTE: Pnor to magneto side