1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 162Get this manual
5Examine the water deflectors in the cylinder water passagesThe water deflectors direct water circulationReplace the deflectors if deterioratedUse the correct replacement part number as specified in the parts catalogFailure to use the proper replacement part could result in engine damage through overheating 126112711281 coverRemove the outer and Inner exhaustexhaust 6Remove the screws fr0n:' the outer covers