1979 Johnson Outboards V-4 Models Factory OEM Service Repair Manual P/N JM-7909, Page 50Get this manual
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install the" ring in the connector, ceed as foliows:
1 Connector housing
assembIy 2 Clamp 3 Hose 4 Primer bulb 5 Outlet valve 6 Inlet valve 7 Sleeve 8"" ring Figure 3-40 Primer Bulb