1984 Ski-Doo Shop Manual, Page 38Get this manual
SECTION 02 ENG INE SUB-SECTION 02 (277 ENGINE TYPE)
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Hexagonal distance nut mm (4) Washer 8,4 mm (4) Cylinder head Head gasket Insulating rubber Cylinder Intake manifold gasket Intake manifold Lockwasher mm (2) Allen screw M8 30 (2) Cylinder flange gasket Semi-trapez ring Rectangular ring Piston Gudgeon pin
76Circlip (2)
17Needle bearing
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Lock spring Switch spring Reinforcement spring Screw M4 (2) Lockwasher mm (2) Decompressor knob Cap nut M12 Spacer Switch housing Grommet Locking and sealing sleeve Decompressor Decompressor cable
CLEANING
Discard all gasketsClean all metal components in non-ferrous metal cleanerScrape off carbon formation from cylinder exhaust port, cylinder head and piston dome using wooden spatula
INSPECTION
The inspection of the engine top end must include the following measurements:
TOLERANCES MEASUREMENTS FITTING NEW PARTS (MIN (MAX WEAR LIMIT