1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 95Get this manual
Installation 1Install new carburetor flange gaskets dry, use no sealer2Attach primer hoses to carburetor fittings3Install carburetors, lockwashers and nutsTighten nuts securely4Install fuel supply hoses using new tie straps5Install carburetor linkageRefer to Synchronization and Linkage Adjustments, Section 1, for adjustment information6Connect drain hose to air silencer base fitting7Install base gasket and air silencer base using new screwsTorque the screws to 24-36 inIbs(3-4 Nm)8Momentarily pressurize fuel system and check for leaks9Install the gasket, air silencer cover and retaining screwsTorque the screws to 24-36 inIbs(3-4 Nm)10Ifthe slow speed needle adjustment has been disturbed, refer to Carburetor Mixture Adjustment Carburetor Mixture Adjustment
The slow speed mixture in this carburetor is controlled by factory adjusted needleThis procedure should only be used if the needle adjustment has been disturbed r:jJl 1Make reference mark on the adapter sleeve before you disturb the needle adjustment2Turn idle speed knob to full SLOW position3Start the engine and allow it to reach normal operating temperatureRun the engine in gear at slow speed (700-800 RPM) for three minutes If the adjustment is too lean, the engine will sneeze and backfire, go to Step Ifthe adjustment is too rich, the engine will be rough and unsteady, go to Step 5r:jJl 4If the adjustment is too lean, notice your reference mark and turn the needed 112 revolution counter-clockwiseWaiting 15 seconds after each adjustment, repeat this procedure until you reach the highest consistent RPMo