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1952-1967 Evinrude and Johnson 3 HP Lightwin Tune Up Project
1954-1964 Jonnson CD Series 5.5 HP Seahorse same as Evinrude Fisherman Tune Up Project
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From: Tim Mclaughlin
Date: 04 Sep 2008
Time: 12:59:03 -0500
Remote Name: 63.252.160.28
What would these # mean? 4423 15210
From: Tom Travis
Date: 21 Jun 2005
Time: 08:35:20 -0500
Remote Name: 63.252.160.20
Kristian, Thanks for visiting. In addition to what I wrote, I have links to two other good articles at the bottom of that page. Here is a clip from one of the articles: The easiest way to convert one of these engines Is to use the same parts that OMC used to convert these engines to fuel-pump versions; for example, the 5.5 hp, 10 hp and 18 hp utilized pressure tanks until about 1959; after which, they were equipped with fuel pumps. Not many parts are needed; a new “bypass” cover, a fuel pump that fastens to the by pass cover, a new motor-end quick connector, and some hose and clamps. It may be possible to order these parts new from an Evinrude or Johnson dealer, but they will not be real cheap. The outboard “for sale” boards and of course e-bay are other potential Sources. I've not worked with the 10 HP before but I've seen them in my local salvage yard did show me the "bypass cover" they were refering to and how the larger motors were easier to convert than the 5.5.