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  • Dear Community Members,

    Updated 9/29/20 - Upgrades have been pushed until 10/7/20

    Over the last two years, there have been updates to the environment that have introduced challenges in usability, performance, and security. Efforts to improve the technology, user interface and site performance have revealed weaknesses in the platform and outdated software our site uses. This has made it increasingly difficult and frustrating to support and upgrade to more modern reliable standards that users deserve. This is not the experience we want for the members of this community.

    Members want a fast site that performs well across all devices, to be able to find relevant and interesting content, and easily share through text, images, video, and messaging on a secure platform. Our goal is to provide this user experience to all members. We will be updating to a new platform to better meet the needs of this community and allow us to provide support more efficiently. Our focus is to create a sustainable platform that performs well and loads faster on all devices while offering seamless ways to search and connect. Technology is constantly innovating - by creating an environment that we control we can maintain the site with more frequent improvements and maintenance updates.

    Although change can be difficult, we are here to support you through the process. We make every effort to review existing settings and make the changes needed so the migration goes smoothly. If you notice something doesn’t seem correct once the site goes live, don’t panic! We’ll have a dedicated person monitoring as the site goes live to answer any questions and provide support through this change.

    What’s next?
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    We appreciate each member’s contribution to this community and look forward to an improved experience for you all.

    - Management

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1985 Mercury 115 6 cylinder 2 stroke fuel screen

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  • 1985 Mercury 115 6 cylinder 2 stroke fuel screen

    I have a 1985 Mercury 115hp 6 cylinder 2 stroke motor. I have had a problem with the motor wanting to die under load or when it does try to run it will not go much more than idle speed. I was told that it is probably the fuel screen it clogged. I looked at the motor but not sure where the screen is. Can anyone help me so that I can try to fix this issue. Thanks.

  • #2
    According to the parts list, you either have the old style fuel pump or the new style fuel pump. The new style fuel pump will have an inline plastic fuel filter. You should see it.

    The old style fuel pump will have a screen under a black plastic cup. Trace the fuel line into the engine and look for an upside down cup, an inch or so inside the motor. It will have a stainless steel Phillips screw in the center. Remove the screw and under it will be an oring and a screen.

    You also have fuel screens under the brass fittings that go into the carb covers. They hardly ever clog.

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    • #3
      Open the low speed mixture screws 1/8th turn at a time.-----test run after each adjustment.------You may find that the bogging will go away.

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      • #4
        Originally posted by racerone View Post
        Open the low speed mixture screws 1/8th turn at a time.-----test run after each adjustment.------You may find that the bogging will go away.
        I found the screen and cleaned it and it ran great. I tried putting around a little and then try to give it more gas and it would bog down for about 5 minutes then take off again. Did it everytime I tried doing that. I have the one with the cup that the screen is in.

        Where are the low speed mixture screws?

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        • #5
          Easy to find.---Top / right on front of the carburetor.

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          • #6
            Originally posted by racerone View Post
            Open the low speed mixture screws 1/8th turn at a time.-----test run after each adjustment.------You may find that the bogging will go away.
            Well I messed with the low speed mixture screws but it was with muffs in my yard and it doesn't bog down that way only when it is under load on the lake

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            • #7
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              Oh well.----Why not test it in the lake then.----You may not be aware of this simple procedure to get rid of bogging on these inline engines.---- ---TEST RUN IN THE LAKE----Is what I meant..------You can not fine tune one of these engines running on a hose !!!!

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