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Help FZR250 FUEL PUMP - OEM/AFTERMARKET DIFFERENCES

Discussion in 'Yamaha 250cc In-Line 4's' started by Dan785, Feb 5, 2018.

  1. Dan785

    Dan785 Member

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    I am looking to purchase a new fuel pump for my 1986 FZR250(2KR) and notice that on the aftermarket pump there is a nipple on the base of the pump whereas the OEM one doesn't have one. Both are described as part # 3LN-13907-00. It would be appreciated if someone could let me know what the nipple is for and if having one or not makes any difference. aftermarket 3ln3907.JPG oem 3ln13907.jpg
     
    Dan785, Feb 5, 2018
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  2. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    It is just and air breather/drain and does not make any difference.
    Fit the pump with it pointing down.
     
    • Agree Agree x 1
    Murdo, Feb 5, 2018
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  3. Dan785

    Dan785 Member

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    Thanks Murdo. Cheers, Dan
     
    Dan785, Feb 5, 2018
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  4. Joker

    Joker See "about me" for contact details. Contributing Member

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    Yep i have one with the blue cable its good however the ports are one size larger than the standard fuel hose
     
    Joker, Feb 5, 2018
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  5. Ben Jammin’

    Ben Jammin’ Active Member

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    Ditto, the nipple doesn't connect to anything, it's just a casing drain.
    I think the inlet/outlet are 8mm?
     
    Ben Jammin’, Feb 5, 2018
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  6. Joker

    Joker See "about me" for contact details. Contributing Member

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    8mm std the blue cable one is 10mm
     
    Joker, Feb 6, 2018
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  7. Dan785

    Dan785 Member

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    I ordered the one shown. If it does come in with the 10mm outlet can the 8mm fuel line be coaxed on - maybe using a bit of heat?
     
    Dan785, Feb 7, 2018
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  8. Joker

    Joker See "about me" for contact details. Contributing Member

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    I havent tried that yet but it looks difficult.
     
    Joker, Feb 7, 2018
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