1983 Yamaha 30EN Outboards Service Manual, Page 35Get this manual
Removal WARNING: Gasoline is highly inflammable and explosiveAvoid smoking while servicing the fuel systemAlso, keep away open flames and sparks1Fuel joint (Engine side) Remove the clip from the fuel hose joint and remove the hose from the fuel joint by pushing the end of the hose with slotted-head screwdriverNext, remove the bolt, and remove the fuel joint from the bottom cowlingWARNING: Fuel remains in the fuel hose between the fuel joint and fuel filterDrain the remaining fuel out into container or soak it up with cloth so that the fuel does not spill on to the bottom cowling Remove the fuel filter cup, and remove the fuel filterWARNING: The fuel collecting in the filter cup should be drained into vessel or dry rags