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Thread: tri-z fuel pump

  1. #1
    Join Date
    Jun 2011
    Location
    southern california
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    125

    tri-z fuel pump

    has anyone switched their pump with one of these or now the differences compared to the stock one
    http://cgi.ebay.com/ebaymotors/MIKUN...#ht_2190wt_752

  2. #2
    Join Date
    Dec 2007
    Location
    Southwestern NY
    --
    517
    don't bother with them...It's just a lawn mower fuel pump. It will do the job, but a rebuild kit for the stock pump can be had through Parts Unlimited for about $20. Part # MK52. Other than diafragms, nothing realy goes wrong with the stock ones.
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  3. #3
    Join Date
    Apr 2011
    Location
    Mexico
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    9,018
    My understanding is that they DON'T work for our trikes. The one we use flows like 35 gallons per hour VS that one which flows like 10 which will likely idle your trike, but WFO would be an issue (go to Mikuni's home page and look up fuel pumps for the exact numbers). What you will also see on that page is a round pump that flows over 60 gallons per minute. I am curious to know if anyone has adapted that pump to a Tri-Z. By the way rebuilding your stock pump is easy and cheap.

  4. #4
    Join Date
    Jun 2011
    Location
    southern california
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    125
    thanx that is cheaper another question is does anyone know of a carb rebuild kit that works for the tri-z

  5. #5
    Join Date
    Sep 2010
    Location
    Grand Rapids, MI
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    522
    Quote Originally Posted by zmpolaristech View Post
    .... a rebuild kit for the stock pump can be had through Parts Unlimited for about $20. Part # MK52.
    slaughter, here is your answer.
    Last edited by tommerp; 07-27-2011 at 05:25 PM.
    Gunter glieben glauchen globen

    The Good:
    1985 1/2 Tri-Z - Daily Rider - Pretty much stock ( wink )
    1985 1/2 Tri-Z - Custom Black & Gold, Top mount plastic tank, custom 3D printed airbox, Banshee shock
    1985 Tri-Z - Rider restore in process

    The Bad:
    1988 TRX250R with 86 ATC 250R Motor and Swinger - Screamer!

    The Ugly:
    1993-ish Banshee / 2003 Motor by VSR in Belding, MI - Duner Fun!!
    2000-ish Banshee / Motor by RDZ Racing in Fowlerville, MI - Another Duner!

  6. #6
    Join Date
    Apr 2011
    Location
    Mexico
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    9,018
    Go to eBay or Amazon and search Mikuni DF-52 Round Fuel Pump Repair Kit. I got mine for $13.99 plus shipping.

  7. #7
    Join Date
    Jun 2011
    Location
    southern california
    --
    125
    thanks i just bought it but im still looking for a carb rebuild kit

  8. #8
    Join Date
    Apr 2011
    Location
    Mexico
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    9,018
    Look on the Sudco website to start. How much are you looking to change on the stocker? If it's anything more than a floatbowl gasket and a needle and seat you may want to consiter a 38mm Keihin. I hear the difference is HUGH, but can say myself as mine already had the 38 when I bought it.

  9. #9
    Kale is offline First Time Rider Arm chair racerNew to the board
    Join Date
    Jan 2011
    Location
    AB
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    78
    I'm running something similar to that. I picked it up at the Yamaha shop after getting the wrong diagrams twice. Apparently it was for a sled. Anyways, it works great, idle to full throttle. Mounting is a different story tho...

  10. #10
    Join Date
    Jun 2011
    Location
    southern california
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    125
    well maybe you guys can help me out because i think the problem is that its not getting any gas to the carb
    the initial problem was that it was bogging down and wouldnt idle now the damn thing wont start but if i spray starter fluid in to it, it will fire up this is why i was thinking that it could be the pump
    has anyone else had this problem because this is becoming a real head scratcher for me

  11. #11
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,018
    Check any filters and the reeds too

  12. #12
    Join Date
    Jan 2006
    Location
    conesus lake NY
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    11,894
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    the only other pump I ran is a is a MIC from FTZ it was a high flow pump thet runs GREAT on Alky and Gas!! never a problem... then again for 20 buck you can rebuild a stocker.. and it will last 30 years! I will say I do ever kind of racing and the stock performs great!

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