1984 Ski-Doo Shop Manual, Page 40Get this manual
SECTION 02 ENGINE
SUB-SECTION 02 (277 ENGINE TYPE)
18 to 30, Decompressor ass'y
To adjust the decompressor, put the decompressor switch on "off" positionIf there is some end gap between cable housing and decompressor valve lever, turn the adjustment screw counterclockwise until you eliminate that end gapBeware not to compress the valve lever