1986 Ski-Doo Factory Shop Manual, Page 21Get this manual
Section 01 TOOLS Sub-section 02 (SERVICE TOOLS)
SERVICE TOOL
PURPOSE
APPLICATION
Crankshaft feeler gauge 420876620
On PTO side
PTO: 377 .447503 engines
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Distance gauge 420876820
To position crankshaft bearings, P.T.Oside
462 engine type