1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 81Get this manual
[TI Disassemblythru Deluxe 1Remove four screws and separate float chamber from carburetor body Remove and discard float chamber gasket Remove low-speed packing nutthen remove needle valve Remove packing from carburetor, using care to avoid
damaging threads in carburetor body3Remove roll pin
and remove fuel shut-off valve equipped)Remove O-rings Q)
4 Remove fuel pump bladder
CD (if equipped)
by unscrewing fuel pump nipple