1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 234Get this manual
f71 f81 9Remove the adapter to jet housing screwRemove four screws and lock washers through the opening in the housingRemove bearing housing, driveshaft, water pump, and jet housing as an assembly
19l 10If servicing the adaptor or exhaust housing, remove screws
L!J retaining the adaptor and remove it from the exhaust housing
Remove GateCam Models 1Remove cam screweccentric nutand bushings f11l 2Remove cam roller nut, and remove cam assembly from reverse gate arm