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  1. #1

    Default 1990 evinrude 120 water control valve delete

    Does anyone know exactly which parts are required off which year and model evinrude to replace what is needed to delete water control valve ?
    do the covers , and stats need to be replaced with different ones along with the springs and diaphragm's ?
    I've read several post and each gives different motors and years with the parts that will work
    Maybe , they all will , Ha !!
    Just trying to get a little more confidence on which motor parts to get for replacing
    Any help would be great
    Thanks to all

  2. #2
    Join Date
    Nov 2011
    Location
    tennessee
    Posts
    4,656

    Default Re: 1990 evinrude 120 water control valve delete

    1989 and up 3 cylinder motors..need t-stat cover,gasket,spring,t-stat,cup and seat...covers are hard to find now
    Pappys Sales and Service
    Owner and Factory Certified Technician
    Former racer KDBA (Kentucky Drag Boat Association)

  3. #3
    Join Date
    Apr 2010
    Posts
    4,901

    Default Re: 1990 evinrude 120 water control valve delete

    When did they build a 3 cylinder 120 hp??

  4. #4
    Join Date
    May 2013
    Location
    Scarborough, ON
    Posts
    146

    Default Re: 1990 evinrude 120 water control valve delete

    Quote Originally Posted by Boobie View Post
    When did they build a 3 cylinder 120 hp??
    faztbullet is saying that you need the thermostat and components he mentioned for a 3 cylinder motor, install them on the 120 hp Evinrude, and then eliminate the control valve.
    The things we have to do.
    Some bean counter decided "Let's stop making these" and now everybody with those engines affected get to scramble.
    We then adapt and overcome - playing engineer - and make the engine as it should have been in the first place

  5. #5
    Join Date
    Sep 2010
    Posts
    20,259

    Default Re: 1990 evinrude 120 water control valve delete

    Fazt----Is merely stating that parts for this conversion are found on the 3 cylinder motors.----Similar parts for the thermostat cover on those.-----Last I looked Faztbullet is not being paid by the letter and is leading folks to look for the solutions.-----Many outboard motors in Canada are not used that much.-----I do get occasions phone calls from folks up to 2000 miles away looking for NLA parts.-------One of the issues is plastic parts that simply break with age.----And somehow folks are expecting spare parts for 40 year old motors at bargain prices. ----Most folks have no idea on the cost of producing say 10 plastic moldings for a 40 year old motor.----Or the cost of parts warehousing / retrieval / shipping ETC, ETC.
    Last edited by racerone; 08-09-2020 at 09:13 AM.

  6. #6

    Default Re: 1990 evinrude 120 water control valve delete

    speaking of obsolete parts
    Is there a adaptation that a guy could do on the 1990 4 cylinder motor to get around the spark advance adjust when the plastic handle/ knob is broken
    Now , that part is definitely missing from planet earth

  7. #7

    Default Re: 1990 evinrude 120 water control valve delete

    Probably should start a new thread on that one , but it looks like some of the best guys are into this one

  8. #8

    Default Re: 1990 evinrude 120 water control valve delete

    Used a small hose clamp on end of shaft sticking out to hold spring tension
    Worked great

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