1983 Ski-Doo Shop Manual, Page 11Get this manual
SECTION 01 TOOLS SUB-SECTION 02 (SERVICE TOOLS)
Cylinder aligning tool377,503 engines 464 engine 534 engine
Twin cyl inder engines 420876 171 420876575 420876570
377, 503 engines 420240275
Cylinder aligning tool
Connecting rod holder 420977 900