Gas/Oil mix

Discussion in 'Bubba's Outboards' started by brother hilljack, Apr 10, 2009.

  1. brother hilljack

    brother hilljack New Member

    Messages:
    7,305
    State:
    Shelbyville, TN
    I think the answer to this is 50:1, but i want to be sure. What should the Gas/Oil mix be for a 1996 Johnson 150 HP outboard motor. I am curious becasue I don't want to over mix my motor. I have been getting some fouled plugs and I am thinking it may be related.??

    Any thoughts
     
  2. efrith

    efrith New Member

    Messages:
    1,306
    State:
    Seale Alabama
    50/1 is the mix if you are fouling plugs then try some hotter plugs.
     

  3. Wabash River Bear

    Wabash River Bear New Member

    Messages:
    3,019
    State:
    Indiana
    50:1 is correct. If you are fouling plugs, first make sure you are using the correct heat range plug. If you are and still fouling, what rpm range are you fouling plugs at? It could be a carb adjustment as it was with mine, fouling at idle and low rpm. A small carb adjustment brought it right in, no more fouling and runs great.
     
  4. Todd Strong

    Todd Strong Active Member

    Messages:
    1,023
    State:
    Cambridge, Ne
    I have found that champion plugs are the plugs of choice for the OMC family. Be sure your using the right plug for the application.

    Not 100% sure, Champion QL82YC, hi heat plug
     
  5. ateamfisherman

    ateamfisherman New Member

    Messages:
    297
    State:
    Texas
    I have a 35 h.p. motor imixed two cups of oil with 6 gal. of gas is this too much oil it dont seem to run as peppy as it did before. Thanks sam Davis
     
  6. Wabash River Bear

    Wabash River Bear New Member

    Messages:
    3,019
    State:
    Indiana
    Sam, run down to your local outboard shop, Gander Mountain, Cabelas, BassPro, ect, and pick up a mixing bottle. It has the propper ounces to gallons and ratio on the bottle. I think they are only about 3 or 4 dollars. It comes with a lid so you can carry another tank mix with ya at all times in case you need to fill up at a marina.
     
  7. Todd Strong

    Todd Strong Active Member

    Messages:
    1,023
    State:
    Cambridge, Ne
    Sam here is a useful mixing calculator. :wink:

    http://www.csgnetwork.com/oilfuelcalc.html
     
  8. slimdaddy

    slimdaddy Well-Known Member

    Messages:
    2,603
    State:
    Nelsonville, Oh
    Name:
    Keith
    no that should be about 50to 1 16 0z to 6 gals
     
  9. BajaCoop

    BajaCoop Well-Known Member

    Messages:
    3,206
    State:
    Poplar Bluff,MO
    16 cups in a gallon
    so 2 cups is 1/8 of a gallon

    so you need 50 * 1/8 gallon of gas for 2 cups of oil
    that is 6.25 gallons of gas.


    So it was a tad rich for a 50/1 mix but not much.