2004 SR Johnson 2-stroke 40, 50HP Service Repair Manual P/N 5005640, Page 144Get this manual

2004 SR Johnson 2-stroke 40, 50HP Service Repair Manual P/N 5005640, Page 144

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FUEL SYSTEM FUEL SYSTEM TESTS
There should air vapor bubbIes visibIe in the clear hoseThe maximum inlet fuel vacuum must not exceed inHg(13.5 kPa) at the fuel inlet of the pump under opeating co