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  1. K

    Mercury outboard 4stroke lower unto question

    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- 20...
  2. K

    Questions Converting a Long shaft to a short shaft lower unit

    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 90hp 4 stroke EFI cuts out

    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

    Need sync & timing help with 1990 175 hp with accellarator pumps on side of carbs

    1990 Mercury 175 hp. Carburated (not oil injected) Serial number # OC289990 Model #11754220D Ok, My engine has the carburaters with the Accellorater pumps on the side of each carb. -What I need help with. I just got finished replacing all the fuel, & vacuum lines from the carbs back to the...
  5. K

    HELP! I am not getting any fuel pressure

    Ok, Here's the problem I am fighting with, & my equipment. My Mercury 1990 175 hp Carbureted outboard only runs till the fuel empties from what fuel is in the fuel line & primer bulb & the motor dies. The primer Bulb will be empty, & I can't get the bulb to pull any fuel into the primer bulb at...
  6. K

    1990 marcury 175 hp magnum II RX4 I( no fuel pressure )

    I have a 1990 Mercury 175hp magnum II RX4 I just bought the motor and the previous owne had let it sit a while. I have gone through and replaced all the fuel lines, soaked the carbs. And made sure everything is how the manual says it should be. My problem is that I am not getting any fuel to...
  7. K

    Carburetor issue

    I have a mercury 175 hp carbureted outboard I just bought, the butterfly's on the carburetor frozen closed how should go about freeing them up ?
  8. K

    What is this???

    Can anyone tell me what this is and what the correct part is that goes here and where it goes to? Or where it connects or what it connects to and with what? I am referring to the little nipple looking thing I am pointing to with my index finger in the photo? Also I added a second photo, do you...
  9. K

    Tube or hose ID help?.

    Can anyone ID what these tubes are named and possibly the part number? They could be hoses for something not sure what, but I have several of them. I added a photo of where they are on the motor
  10. K

    Tilt wiring Connection

    Can anyone tell me what the power trim button plugs into on the wiring I have the following wires coming out of the button. I have these wires where do they connect to? > RED > Green/White stripe > Yellow/White stripe - or white I can't exactly see in the photo I took of the wiring. Does...
  11. K

    HELP, can anyone ID this motor?

    Hi, I just bought a 1997 trihull boat with a mercury outboard on it. It's a v6 but I can't find anyone who can tell me exactly what motor I have so I can order parts for it. The plate on the transom is blank where the serial number is supposed to be. I have the engine block bolt serial number...
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