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  1. #1
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    Engine operating temps 2021 4s pro xs

    <3B051045>

    what are the appropriate operating temps for the 200 hp ? meaning what temp am i looking for before leaving the ramp and taking off after putting the boat in the water
    Last edited by EuropeanAM; 06-22-2021 at 12:40 PM.
    2021/ 200 hp 4 stroke pro xs
    2021 Triton TRX 18
    #3B051045

  2. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #2
    Similar to your former Optimax product: Make sure the engine is warming up to at least 120 degrees at idle (note that many will run in the 140-145 degree range at idle, but may be lower depending on water temps).

    Please check your engine's serial number. The one you provided in your serial number is NOT a 4-stroke 200 ProXS.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  3. Member
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    #3
    Quote Originally Posted by EuropeanAM View Post
    Similar to your former Optimax product: Make sure the engine is warming up to at least 120 degrees at idle (note that many will run in the 140-145 degree range at idle, but may be lower depending on water temps).

    Please check your engine's serial number. The one you provided in your serial number is NOT a 4-stroke 200 ProXS.
    what it said on the bill of sale..
    2021/ 200 hp 4 stroke pro xs
    2021 Triton TRX 18
    #3B051045

  4. Member
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    #4
    Quote Originally Posted by VA Bass View Post
    what it said on the bill of sale..
    you are correct that was my old engine!

    my new motor is : 3B051045
    2021/ 200 hp 4 stroke pro xs
    2021 Triton TRX 18
    #3B051045

  5. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #5
    Thanks. Good idea to update your signature to show the correct number.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

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    #6
    I will looking at the wrong # when I made my signature.. it's all good now.
    2021/ 200 hp 4 stroke pro xs
    2021 Triton TRX 18
    #3B051045

  7. Member
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    #7
    I am seeing 136-to low 140s.. so that should be ok then
    2021/ 200 hp 4 stroke pro xs
    2021 Triton TRX 18
    #3B051045

  8. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #8
    Absolutely.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

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    #9
    My 225 runs about 136-138