Re: 1957 seahorse 35hp Johnson
You've got a workhorse in the rough there. The fuel pump conversion is easy to do, whichever option you choose. Might try a pressurized tank though, some folks get along with them real well. You can run it with the lower unit in a big trash can or barrel of water, but be forewarned the water will be an oily mess when you finish...just a heads up in case you've got fussy neighbors or the green police nearby. After you get it running well, consider repainting the top cowl...those motors really clean up nicely. Below is a pix of the Texas Maid, the 57 Evinrude is a cousin to your Johnson.