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  1. M

    JB...

    Ok, I won't repost. But my original post still is unanswered. Unless I'm making some sort of mistake in viewing the thread. :(
  2. M

    repost :OMC parts

    this is a repost:<br /><br />Thanks to all who keep replying to my many questions!<br />Need the OEM part numbers for the two gaskets on the air silencer (air silencer cover side, and carb side) Also, being a pessimist, I am assuming the leaf valves may need replacing once I get into my carb...
  3. M

    OMC part numbers

    Thanks to all who keep replying to my many questions!<br /> Need the OEM part numbers for the two gaskets on the air silencer (air silencer cover side, and carb side) Also, being a pessimist, I am assuming the leaf valves may need replacing once I get into my carb rebuild. Do you replace just...
  4. M

    fuel lines

    When replacing fuel lines feeding the carbs, do you need any type of marine grade, or can they be purchased at any auto supply store?
  5. M

    low speed needles

    About to start on clean/rebuild of carb on my '75 johnson 50hp. When ordering the kit, should I also order new needles and seats, or do these rarely need replacement. Also, my manual states that when you remove the silencer from the carbs there are single use screws that need to be replaced. Do...
  6. M

    carb rebuild question

    I plan on rebuilding the carb on my 1975 johnson 50hp this spring, as I don't know the maintenance history for this motor. I am fairly sure it has never been done, and has been running rough this season.<br />1) What parts, and how many, should i order.<br />2) Where can I get a rebuild...
  7. M

    coil on '75 johnson

    Just had one coil replaced on my 1975 Johnson. Shop charged me $260. Seems a bit high to me. Anyone know what a job like that should run?
  8. M

    running on one cylinder

    My 1975 50 hp seems to be running on one cylinder most of the time. I start her up, run in high idle very rough. In gear it may run ok for a bit, then lose most power and seem to run on one cylinder, then go back to normal. She also stalls in neutral, even though I had the idle adjusted a while...
  9. M

    adding tach to '75 50hp

    I would like to add a tachometer to my '75 Johnson. The manual says there is a wire in the control box for adding one. What do I attach that wire to on the guage, and what else is involved in the wiring ?
  10. M

    '75 johnson 50 hp low speed problem

    This is a repost, can't find original on site.<br />First season with '75 50 hp. Motor has new power pack. She is running rough at low speed. Some times when you put her in gear and accelerate she quickly bogs down and stalls. This may happen several times in a row, then problem disappears.<br...
  11. M

    '75 johnson 50hp

    My first summer with my Johnson 50hp, and I have several questions. Recently when I put her in gear and try to accelerate, the motor "bogs down" and stalls. This does not happen all the time, I restart and do the same thing a few times, then she runs fine. When in neutral, with the start lever...
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