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  1. K

    2011 90 Mercury 4-Stroke switching a 25 inch foot to a 20 inch foot.

    I need a 2011 Mercury 4 Stroke outboard lower unit spe******t who can tell me what I need to do with my lower unit. Here's the current state of things. I have a 2011 Mercury 90HP Four Stroke EFI with a 25 inch Shaft. i have already bought all the Mercury Parts needed to complete the job. 1-...
  2. K

    Questions Converting a 25 inch shaft over to a 20 inch shaft

    I have a 2011 Mercury 90hp Four Stroke EFI outboard with the X-Long 25 inch shaft lower unit that I need to Convert to a 20 inch short shaft lower unit. I have two questions about converting the lower unit over to being a 20 inch short shaft. A.) would I be much better off replacing the entire...
  3. K

    2011 mercury 4 stroke 90hp EFI keeps cutting off

    ok, Heres my issue, but first, here is the information about the motor so you will know better how to ID the problem. I bought a 2011 90 hp 4 stroke EFI used but in good condition. Just to be on the safe side I replaced the air filter, plugs, oil's, fuel filter on the high pressure side, new...
  4. K

    Tilt/trim intermittently working

    Got a 90 merc, tilt and trim started working for 4 seconds then stop, wait 30 seconds and it will go 4 seconds. Over and over & over, any help with how to bleed and fill the trim/tilt resivor correctly would be great. Also, how do you bleed the tilt/trim of air? When the tilt started to act a...
  5. K

    tilt/trim hanging up

    Got a 90 merc, tilt and trim started working for 4 seconds then stop, wait 30 seconds and it will go 4 seconds. Over and over & over, any help with how to bleed and fill the trim/tilt resivor correctly would be great. Also, how do you bleed the tilt/trim of air? When the tilt started to act a...
  6. K

    Bilge & live well pump together

    ired so that they are in the rear of my boat there's a bilge pump, and a bait well pump, if I want them wired from my dash on/off switch, how do I wire this set up? A diagram would help the most
  7. K

    Tilt and trim

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  8. K

    Any mercury outboard Carburetor spe******t out there?

    I have a 1990 mercury 175hp magnum II RX4 outboard with the WalBro WHM carburetors on the motor. My carbs are the single float carbs that have the accelerator pump off to the side. Of the carb Serial number OC289990 Side note:: According to the Seacor Manual the WMH Walbro carbs with the...
  9. K

    1990 mercury 175 carb with a mystery swoosh sound

    Ok, I have av1990 Mercury 175 hp carb. Outboard, my bulb won't pump up, it's new, tried 3 bulbs, not the problem. Each time I pump the bulb, I hear a swoosh of air sound coming from the bottom carburetor if I crank the motor it will run fine with some throttle. And even with the motor running...
  10. K

    1990 mercury 175 carb with a mystery swoosh sound

    Ok, I have av1990 Mercury 175 hp carb. Outboard, my bulb won't pump up, it's new, tried 3 bulbs, not the problem. Each time I pump the bulb, I hear a swoosh of air sound coming from the bottom carburetor if I crank the motor it will run fine with some throttle. And even with the motor running...
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