1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Repair Manual, P/N 520210, Page 91Get this manual
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Inspect float needle and seat for wear or distortionReplace both pieces if necessary
Assembly
1 Attach the vapor separator cover to the bracket, and tighten screws in an "X" pattern