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  1. #1
    Join Date
    Oct 2009
    Location
    clifford, Pa., U.S.A.
    Posts
    6

    Default Mercury Carburetor numbers ?

    Can someone kindly help me out with these Merc #'s. I have a 1994 Merc 75hp Pro Series Tracker. Model 1075412PT. Serial 0G073793. The engine idles rough and I wanted to adjust the idle mixture screws. When I looked on the WME carburetor chart my 75 ELPTO carb #'s start with 33 not 29 as the manual states. Thus the idle mixture screws require different settings. Example, on the 29 the carb #1 preset is only a half turn out. Which carburetor settings do I use.

  2. #2
    Join Date
    Sep 2010
    Posts
    18,479

    Default Re: Mercury Carburetor numbers ?

    The initial setting means very little , only that the motor will start and keep running !!-------so start with one turn out and adjust all 3 evenly from there.-----------------You are sure there are no other problems other that carburetor adjustment.------You have looked at the reed valves ????----------You have looked at the check / bleed valves ( very small item ) in the intake system.

  3. #3
    Join Date
    Oct 2009
    Location
    clifford, Pa., U.S.A.
    Posts
    6

    Default Re: Mercury Carburetor numbers ?

    Have not looked at the parts you mentioned yet. Will, after I do the idle mixture. Thank you for the response racerone.Going to try your suggestion this morning with the settings.

  4. #4

    Default Re: Mercury Carburetor numbers ?

    Hey, man, have you done it ? Is it working ? I want to do the same thing, but I have no experience in that area at all, so, I would appreciate if you will give me a piece of advice. Unfortunately, I don't know much about cars.

  5. #5

    Default Re: Mercury Carburetor numbers ?

    Quote Originally Posted by stones11 View Post
    Hey, man, have you done it ? Is it working ? I want to do the same thing, but I have no experience in that area at all, so, I would appreciate if you will give me a piece of advice. Unfortunately, I don't know much about cars.
    Hey, man, have you done it ? Is it working ? I want to do the same thing, but I have no experience in that area at all, so, I would appreciate if you will give me a piece of advice. Unfortunately, I don't know much about cars. My carburetor's number ends with 644. Does it have a special meaning, or something like that ? All I know is that this number is special, I have read it on https://www.sunsigns.org/angel-number-644-meaning/. It's written that it's a very powerful number. I don't know, maybe it's a coincidence, but I actually believe that it's true.

  6. #6
    Join Date
    May 2007
    Posts
    9,221

    Default Re: Mercury Carburetor numbers ?

    You two have piled onto a thread that is 9 years old.

    Better to "post a new thread" (button in the upper left of the main page) and explain your issue or what you want you want help with.

    Nobody much reads threads this old.
    Graham

    A "professional" is someone who gets paid for their work - it doesn't necessarily mean they are good at it :)

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