Hello,<br /><br />Firstly, a small apology for any possible incorrect use of terminology. I am not used to conversating about technical matters in English.<br /><br />The question: I recently bought a 50 HP Johnson outboard, from the year 1991 (model number BJ50BEEIA). The CD2 unit on it seems to have been replaced by a unit of a 40HP 1987 Evinrude engine (model BE40ECUD).<br /><br />Is this possible? Will it work correctly, or will performance on the water be poor?<br /><br />Thanks for any advice.<br /><br />Martin.<br /><br />P.S. For those interested in the full story:<br /><br />The previous owner told me he once bust the CD ignition unit, so he fitted it with a unit from a Evinrude 40HP with a busted power head, arguing that Johnsons en Evinrudes share the same parts, and there was no difference (in the CD ignition) between a 40 and a 50HP. I got the crashed Evinrude for free when I purchased the Johnson, for parts. <br /><br />Recently, I found out the water pump in the Johnson wasn't doing it's job, so I decided to replace it. Obviously, I checked if the Evinrude had any parts in good condition I could use. <br /><br />It was then that I discovered the Evinrude is from 1987, and a lot (most) of the parts on it are different from the Johnson.
