1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 96Get this manual
f'16l 6Check for leaks between emulsion pickup tube and carburetor body Invert carburetor body and fill idle circuit with isopropyl alcohol Check for leaks at point If leak occurs, blow dry and apply drop of OMC Ultra Lock at point Assembly
G!J 1Install new high speed nozzle gasket 81 2Install the float and inlet valve assembly
G!J 3Install the intermediate air bleed orifice G!J 4Install the high speed orificegasket, and drain plugG!J 5Install components of slow speed needle Place one O-ring on threaded end of adapter sleeve Lubricate O-ring with outboard lubricantPlace O-ring in groove on needle head Install adapter sleeve and torque to 30-35 inIbs(3-4 Nm) Install needle and springTurn in carefully until it lightly contacts seat Back out needle for initial setting; 2114 turns for 40 or 234 turns for 48, 50