Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 17Get this manual
Fuel System WARNING
Avoid serious injury or death from gasoline fire or explosionCarefully follow all fuel system service instructionsAlways stop the engineDO NOT smoke or allow open flames or sparks in the area while servicing any part of the fuel system
Fuel Line Filter
1Inspect the fuel line filterIf the filter appears to be contaminated, remove and replaceIMPORTANT: Visually inspect for fuel leakage from the filter connections by squeezing the primer bulb until firm, forcing fuel into the filter
NOTE: Before servicing any part of the fuel system, stop engine and disconnect the batteryDrain the fuel system completelyUse an approved container to collect and store fuelWipe up any spillage immediatelyMaterial used to contain spillage must be disposed of in an approved receptacleAny fuel system service must be performed in well- ventilated areaInspect any completed service work for sign of fuel leakageaFuel Filter