1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Manual, P/N 507266, Page 91Get this manual
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2Install float valve seat and gasket
3Install inlet needle, clip, float, and hinge pin
4Adjust float levelInvert the carburetor bodyWith the float valve closed, the float's top edge should be between, but not touching the notches of OMC Float Gauge, PIN 324891, as shownneedle
INote If adjustment is necessary, do not put pressure on the inlet
5Adjust float dropWith carburetor body in normal position, the float drop dimension should be 118 to in(28-41 mm)6Install nozzle well gasket
7Install float chamber gasket 8Apply OMC Locquic Primer and OMC Screw Lock to the float chamber screws9Install float chamber and four screwsTorque screws in an pattern to 25-35 inIbs(2,8-4,0 Nm)