1972-1981 Polaris Snowmobiles Master Repair Manual, Page 329Get this manual

1972-1981 Polaris Snowmobiles Master Repair Manual, Page 329

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ENGINES

oilCrack the brass hex head screw (A) looseAfter short period of time oil should flow from beneath the screw head to indicate the pump is free of airRetighten the bleed screw