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  1. #1
    Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    Apr 2008
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    Greenville, SC (US)
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    Exclamation HEADS UP for difficulties with achieving 100% Demand Linear (Throttle Demand) V6/V8

    Just a little heads up on something from this week:

    If you are having difficulties consistently getting 100% Demand Linear EVEN WITH a new-style hotfoot:

    INSPECT THE THROTTLE CABLE SHEATH FOR BRAND NAME AND PART NUMBER.

    If it is NOT AN OEM Mercury or Quicksilver PLATINUM cable, STOP and install an OEM cable.

    We just had one (brand new hotfoot and cable) that the aftermarket cable was improperly manufactured. Crimps were intact, not stretched or damaged, just simply the insert was too short or the outer guide was too long (by right at 1"). Even with the barrel adjuster all the way at the end of it's threads you could not get the demand sensor all the way back to idle position.

    There is no solution for that other than REPLACE THE CABLE.

    One other note: many aftermarket cables "oversize" the eyelet at the end of the cable, resulting in a sloppy connection point and excessive free travel. The OEM cable will be sized correctly.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  2. Member JACQUART21's Avatar
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    Feb 2012
    Location
    Fremont, NE
    Posts
    425
    #2
    I will be repowering to a new 250 Pro xs 4 stroke. I have got numerous quotes on a new motor, installation, parts, etc. I am getting inconsistent info. on whether or not my current hot foot would work on the new 4 stroke. What is the determining factor for it working or not? Have heard that the stroke of my current one is too short and have heard that mine is fine, it will work no problem. I provided numerous pictures during this quoting process and was specifically asked about what I had.

    2021 Vexus VX21
    Mercury 250 Pro XS V8

  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    Apr 2008
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    Greenville, SC (US)
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    97,977
    #3
    Pictures will not do a ton of good, though a complete side view of the anchor bracket will at least give an idea of which version it is.

    WEAR is another factor. Bushing wear will make it necessary to replace it.

    For help with that, I'd suggest opening a new/separate post.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor