1998 Johnson Evinrude EC 5 thru 15 HP Four Stroke Service Manual, Page 134Get this manual
23 38075 38076
13Inspect manifold and discard a-ring seals
123114Remove screws retaining exhaust adapterRemove
adapter and a-ring seal
1241 12s1 1261
15Inspect adapter and discard a-ring seal
16Remove screws retaining the pressure relief valveRemove valve and gasket
17Inspect valve and discard gasket
1271 18Remove eight screws retaining valve cover and bracket