1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 91Get this manual
Disassembly
1: 1Remove primer nipple and gasket Remove high
speed orifice using OMC Fixed Jet ScrewdriverDrain fuel into suitable container2Remove intermediate orifice 3Remove components of low speed adjustment needle
4Remove the four screws retaining float chamber to carburetor body5Remove components of float and float valve assembly 6Remove nozzle gasket 7Refer to Cleaning and InspectionAll Models
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 carburetor1Install nozzle gasket 2Install components of float valve assembly seat and float valve3Install float, hinge pin and spring clip