1983 Ski-Doo Shop Manual, Page 29Get this manual
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SECTION 02 ENGINE SUB-SECTION 02 (277 ENGINE TYPE)
21N 115 ft-Ibsl
55 Nm 140 ft -Ibsl
747576777879202722 23242526 Exhaust manifold Lockwasher mm (2) Bolt MB 30 (2) Exhaust elb