Recent content by lakerunner

  1. L

    OMC special tool

    I am in the process of overhauling a 1990 Johnson 120.<br />Looking at the OMC service manual on page 4-22 it states that I will need a OMC Alignment Fixture p/n 396749 to install and torgue the connection rod screws. <br /><br />Is this tool used to set side clearance on the rod and...
  2. L

    Johnson 120/140

    I was wondering what would be required to upgrade a 1990 120 Johnson to 140 hp. The specifications in the manual (bore,spoke,pistons,) are the same so where does the extra 20 hp come from (Carbs,jetting,porting)?<br /><br />Lost compassion on #2 and looking at rebuild anyway just as well pick up...
  3. L

    Question for Dhadley

    Hi Hadley<br /><br />I just have one question about removing the water control valve assy from a 1990 Johnson 120. What do I do with the hose that runs from the control valve to the lower rear starboard side of the block.Do you just plug it are does it T into the hose from the upper port side of...
  4. L

    Ficht Ram Oil

    Open Question:<br /><br />Is anyone here running the new Ficht Ram Oil in an early model OMC outboard? Mine is a 1990 Johnson 120.<br /><br />It was recommended that I switch from TCWIII to the Ficht Ram Oil. The reasons being that it is a higher grade oil and has carb-X so at the least the...
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    Happy Mardi Gras

    Just wanted to post a thank you for the help and a Happy Mardi Gras from lakerunner and crew :) <br /><br />You were right hadley she does like to run high. I had to backout at 5500 (need a little work on the support for the center section of the windshield) :D
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    Head temp

    I'm running a 1990 Johnson 120. The Starboard Head is running a good bit hotter than the Port side what could cause this?
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    RPM RANGE 120 JOHNSON

    Hello to all:<br /><br />I just purchased this engine in December.<br />It's a 1990 Johnson 120. Could someone tell me the RPM range of this engine? The engine is mounted on a 1990 18' Hydra-Sports Fish&Ski and has a Raker 13 1/2 x 20 prop. The RPM at WOT is 5300. Is this about where it should...
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