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  1. #1

    Default 1997 evinrude 35 hp

    Hi. I recently purchased a1997 Evinrude 35 HP outboard and the direct oil injection was disconnected. The guy was running 50:1 but wasn't sure if he could run 100:1. I've been running 50:1 and there is a lot of blue smoke when I idle (I do a lot of trolling). I was wondering if anyone could tell me if 100:1 would be ok to run. Thank you

  2. #2
    Join Date
    Apr 2016
    Location
    barnegat NJ
    Posts
    2,707

    Default Re: 1997 evinrude 35 hp

    50to1 is proper mixture.previous owner was over oiling system. 100to1 will not provide proper lubrication. As long as plugs dont foul it should clear itself up in time.

  3. #3
    Join Date
    Jul 2016
    Location
    Northern VA
    Posts
    6

    Default Re: 1997 evinrude 35 hp

    was it synthetic or standard oil? I absolutely agree 50:1 is ideal on regular outboard oil, but 75:1 shouldn't be a problem with synthetic. I would't say this about engines from the 80's or back, unless they are Yamaha asking for 100:1.

  4. #4
    Join Date
    Sep 2010
    Location
    ontario
    Posts
    13,649

    Default Re: 1997 evinrude 35 hp

    Mixing at 100:1 would be a mistake.---------Thermostat installed and working properly ?-------At constant trolling you might go with a little leaner.----------Myself I would not risk that on one of those fine motors.-----Checked the price of internal parts and availability lately ?

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