1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Manual, Page 77Get this manual
[[] Assembly
INote Before
proceeding, be sure that all parts are perfectly cleanBe sure that all replacement parts match original ones in size and shapeReplace all gaskets, O-rings, and sealing washers each time you assemble carburetor1If removed, press the air vent
2THRU6HP,
in the carburetor body
2Install the high-speed orifice 3Install the gasket and valve seat 4Install the hinge pin
, floatand float valve