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    1978/1981 115 Evinrude still running great.

    My last post was in Oct 2019. Kinda wanted to just update. The motor (knock wood) is still running like a brand new motor. Once I was finished working on it I was kinda burned out on it. So have only taken it to the lake the last 3 years just to run it for a couple of hours each time. Now all...
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    Evinrude 115hp 1981 carburetor jets

    Do the jets wear out over the years. I am not having problems just wondering if I should replace them next time I clean the carbs while they are still available.
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    1978/1981 Evinrude 115hp Carb/Ignition Problem

    Rebuilt 1978 motor with all other parts off the 1981 original motor. Okay I have 3 spark plugs that are kinda wet and one that is dry but medium brown color. Problem is engine is not running full RPMS like 4800 vs 5400... Use to cut in and out now it just stays out of full power. I have bought...
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    1978/1981 Evinrude 115hp Lower Unit water flow for Speedometer?

    I am not understanding how those two holes work. I do not have speedometer, but I do have a replacement lower unit for my original 1981 lower unit which did not have these holes. Currently the bottom hole is stopped up with crust. I ran a small drill bit by hand turning it and got about 3/4 of...
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    1978/1981 Evinrude 115hp Lower Unit Small Hole in Front?

    Can anyone please tell me what this small hole is at the front of my lower unit. I scrapped away old crust but the hole seem to be plugged as I get a vacuum when I try to see if any thing comes thru it.
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    1978/1981 Evinrude 115hp Lower Unit Upper Shaft Bearing Housing

    I took off my Upper shaft bearing housing to replace the seals. No problem there. Now the problem I have is which direction does the oil hole face when I reinstall it.. The hole is kinda off set from the center of the side it is on. Do I face it towards the Shift rod compartment or another...
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    Proper RPM's on a Evinrude 1981 115Hp, with at 1978 Johnson powerhead.

    I have read many posts on this and Dhadley says to run in 5800 to 6000 rpms. I have it on a 1978 Ranger, with a 13 X 19 SST prop and would run nicely at 4800 and could only push it maybe to 5300 max. So now I put a 13 X 17 SST on and it runs nicely at 5200 and can push it as high as 6000. Now I...
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    Thank You to all the Contributors to this channel over the Years!!

    I have spent the last 11 months reading the 5200 + posts in this forum. Finally finished today. I concentrated mostly on mid 70/80's 115 hp motors, also other topics that caught my eye, l/u, tilt/trim, decarb, and many other topics. I have copied around 88 pages of information into my word...
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    1981 Evinrude 115hp lower unit leaking from carrier bearing bolts

    I have had this problem for a few years. The lower unit leaks from the 4 carrier bearing bolts. I tighten them and the problem comes back. It does not leak much but if the lower unit is all the way down it will leak out about 1/8 cup over a few days. I ordered new bolts and installed them with...
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    1981 Evinrude 115hp with 1978 Johnson 115hp powerhead. 2 questions

    I have posted before on this motor on other issues. Now I am up to 3450 posts read so far here on anything related to the 115. 1. When I gave it gas the other day at full throttle it would not go over 2700 rpms for a few mins till it felt like it. Then it kicked in and ran at 5000 rpms no...
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    Johnson/Evinrude 115hp, Not Sure Where To Go From Here

    ​ ​ I had my powerhead from 1981 Evinrude 115HP replaced with a Johnson 1978 115. Now my mechanic used the parts off my 1981. To the carbs he modified the Idle adjust passages to accept the gas flow from the Power Soleniod unit and turned the red knob about the 4 O'clock position so it would...
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