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  1. #1
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    XB21 250 ProXS SM

    How would a SM work on a XB21 250 ProXS with fishing load?

  2. Member skewby's Avatar
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    #2
    thats what most people run

  3. Member mgeod's Avatar
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    #3
    Only way to fly ,, Imo Slay

  4. Member
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    #4
    Depends on you loads but 85+ in good conditions 2 people, 90 plus solo and set to run hard

  5. BBC SPONSOR
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    #5
    Yep! Needs a sporty IMO
    Fastbass Marine LLC
    We specialize in NEW and USED ALLISON BOATS, Blazer Boats, Platinum Mercury Marine Repower Center, AquaTraction Flooring, and custom marine electronic installations on beautiful Kentucky and Barkley Lakes.

    2022 Allison XB-21 BasSport Pro Elite
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    2012 Bullet 21ss
    2005 Mercury 300X

    https://youtu.be/FOnAGNWOgZ0

  6. Happiness is a Sporty! F150owner's Avatar
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    #6
    I've run 85 with two dudes and gear in a fishing tournament. Sporty is only way to go. Low water pickups so you can run high.

    Despite the haters, getting to a spot first, 15 min or more ahead of everyone else has its advantages.

    Allison XB21 2+2, Merc 250 ProXS, 1.62 Sportmaster, Hydromotive Engineering X-OB 29
    Excel 1751 Viper F4, Tohatsu 50 4-stroke, EZ-Trac trailer
    FeelFree Lure 11.5 Kayak

  7. Member
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    #7
    I was wanting to do it but Merc killed my plans " said it would void my warranty" so with the 5 yr platinum and I'm 1 month into it, I just can't take the chance. Dang it.

  8. Member
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    #8
    What? That makes no sense?

  9. BBC SPONSOR
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    #9
    I can see it voiding the gearcase warranty but it shouldnt effect the rotating assembly. A good dealer should work with you in that case.
    Fastbass Marine LLC
    We specialize in NEW and USED ALLISON BOATS, Blazer Boats, Platinum Mercury Marine Repower Center, AquaTraction Flooring, and custom marine electronic installations on beautiful Kentucky and Barkley Lakes.

    2022 Allison XB-21 BasSport Pro Elite
    2022 Mercury 450R

    2012 Bullet 21ss
    2005 Mercury 300X

    https://youtu.be/FOnAGNWOgZ0

  10. Member
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    #10
    Quote Originally Posted by NOTGSXR View Post
    What? That makes no sense?
    Yea kinda what I was thinking. Talked with 4 different people at Merc warranty and customer service and came to the conclusion that it could void my warranty

  11. Member crank68's Avatar
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    #11
    Like Tim said...a good dealer should help you out...
    BULLET 20 XRD/250 Merc Sport XS
    www.ncboatguy.com

  12. Moderator
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    #12
    Legally, I don't think they can void the warranty on the rest of the engine unless the SM caused the failure. Don't take my word on that.
    It would probably cost you a lot of money to fight if a failure ever came up also.

  13. BBC SPONSOR
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    #13
    Quote Originally Posted by Props4u2 View Post
    Legally, I don't think they can void the warranty on the rest of the engine unless the SM caused the failure. Don't take my word on that.
    It would probably cost you a lot of money to fight if a failure ever came up also.
    I agree with this, I can also say ive never had a instance where Mercury asked my mechanic for anything other than a serial number and a diagnosis. One time he did have the rep look at a block because it had cracked and was leaking oil but that was only because I happened to show up on the day the rep came to visit. Ive also had the rep send him all new injectors to fix a problem as well.
    Fastbass Marine LLC
    We specialize in NEW and USED ALLISON BOATS, Blazer Boats, Platinum Mercury Marine Repower Center, AquaTraction Flooring, and custom marine electronic installations on beautiful Kentucky and Barkley Lakes.

    2022 Allison XB-21 BasSport Pro Elite
    2022 Mercury 450R

    2012 Bullet 21ss
    2005 Mercury 300X

    https://youtu.be/FOnAGNWOgZ0

  14. Member
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    Living the good life on Lake Hartwell, Fair Play, SC
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    #14
    just do it!!!!!
    2013 Allison XB-21 BasSport Pro
    2023 Mercury Racing 300R
    Bravo FS 30P
    ProMax 30P

  15. Member
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    #15
    I guess I will be the desenting voice here but I hated having a gearcase with low water pickups on the bottom of the cone like a SM (I was running a coned standard gearcase). It was great if you stayed in deep water but sucked for fishing shallow. I was constantly cleaning trash out of my thermostats. I am running a gen 2 TM now and haven't had that problem, plus it has a better hole shot and mid-range acceleration. Not as fast on top end but still runs into the low 80's which is faster than any other boat I fish against. Believe it or not, I bought my XB-21 as a fishing boat primarily. Nothing against those who are trying to squeeze every last mph out of their boats -- I understand that too!
    2013 Allison BasSport Pro
    2010 Mercury 250 Pro XS