Hi everyone. This is my first post on the forum. I've been working to clean up and make usable an old flat bottom aluminum boat (10 foot I believe) that's been behind my dad's shed for the past 15 years and probably spent the 20 years before that behind the friend's shed that he got it from! The boat floats - and that's about all I can say for it. I took it out one afternoon with my dad and my son and there was a small leak which appeared to come from a seat rivet but we only accumulated about 1/2 cup water after probably 3 hours on the water. I tried tightening the rivet and I'll check on it the next time we go out.
Yesterday I acquired a 1987 Johnson 4HP motor (model BJ4RCUD). I couldn't beat the deal I got on it - 20 minute drive worth of gas. The previous owner said it worked when they put it away a few years ago but they hadn't touched it since. I tried starting it up this morning and to my amazement it started fairly easily. The motor came with no manual and I haven't touched a boat motor period since I was a kid and my dad did whatever maintenance was required on what I believe was a 70's vintage 5hp Johnson. I tried searching the internet and was unable to find a manual for the motor I just got. The Evinrude site only goes back to engines from the mid 90's and provides a link to a vendor that sells the manual for about $35.
If anyone is familiar with the engine could they just post some of the basics of the engine and maybe what is required for maintenance on it? Is this a fairly decent motor? Any info on it would be greatly appreciated.
As soon as I replace the wood on the transom I'll get the motor mounted and test it on the water.

Yesterday I acquired a 1987 Johnson 4HP motor (model BJ4RCUD). I couldn't beat the deal I got on it - 20 minute drive worth of gas. The previous owner said it worked when they put it away a few years ago but they hadn't touched it since. I tried starting it up this morning and to my amazement it started fairly easily. The motor came with no manual and I haven't touched a boat motor period since I was a kid and my dad did whatever maintenance was required on what I believe was a 70's vintage 5hp Johnson. I tried searching the internet and was unable to find a manual for the motor I just got. The Evinrude site only goes back to engines from the mid 90's and provides a link to a vendor that sells the manual for about $35.
If anyone is familiar with the engine could they just post some of the basics of the engine and maybe what is required for maintenance on it? Is this a fairly decent motor? Any info on it would be greatly appreciated.
As soon as I replace the wood on the transom I'll get the motor mounted and test it on the water.



