Re: 1974 Evinrude 85 hp tilt and trim
You can find a parts diagram on the Bombardier website: epc.brp.com. Since that system was considered an "option" these early years, you may have to look under the Parts and Accessories tab for year 1974. Those systems have been discontinued for years, but you frequently used ones for sale-on ebay. You might consider buying a junk engine just for the salvage value of the trim system.