1983 Johnson/Evinrude 2 thru V-6 outboards Service Repair Manual P/N 393765, Page 161Get this manual
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Installation of Intake Manifold and Leaf Valves50 thru 75 1 Using new gasket, install leaf valve assemblies to intake manifoldBe sure new gasket matches all openingsTighten screws to torque of 2,7-4 N