1984 Ski-Doo Shop Manual, Page 70Get this manual

1984 Ski-Doo Shop Manual, Page 70

SECTION 02 ENGINE
SUB-SECTION 03 (377 TYPE)
)To bleed oil lines: All oil lines should be full of oilIf required, bleed the main oil line (between tank and pump) by loosening the bleeder screw until all air has escaped from the lineMake sure the tank is sufficiently filledCheck the small oil lines (between pump and intake manifold) If required, fill the lines by running the engine at idle speed while holding the pump lever in fully open position (TYPICAl)

12,13,33,34, Oil lines
_ CAUTION: On electric start models, it is recommended to install black rubber oil lines (PIN 414 2867 00) that will not be altered by battery fumes