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Pinned FZR250 3LN Fuel System

Discussion in 'Yamaha 250cc In-Line 4's' started by GreyImport, Dec 6, 2013.

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  1. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Heres a rundown on the fuel system and its layout.

    The pipes on the tank outlets and fuel tap/petcock have a 7mm diameter

    Fuel pump pipes have an 8.5mm diameter

    Carburetor T piece inlet has an 8.2mm diameter


    Fuel Filter Part# 1FK-24560

    Be wary of the diameter of the inlet and outlet

    Filter on the left is part# 4TV-24560 which has 10mm

    Filter on the right is 8.5mm and I assume this is a 1FK-24560

    Fuel Filters.jpg

    General schematic

    3LN Fuel System.jpg

    Part # 3LN-24313 Filter > Pump

    Pump line.jpg

    Fuel Tap/Petcock

    Petcock 1.jpg Petcock 2.jpg

    Fuel pump and filter

    Fuel pump and filter labels.jpg


    Fuel Pump Part# 3LN-13907-00

    749982 Fuel Pump 3LN-13907-00 labels.jpg

    Internal Tank Filters

    Internal filters.jpg fuel filters fzr.png

    Carburetor Fuel Inlet T piece

    Carburetor T piece.jpg
    T Piece.jpg


    Inside the Fuel Tap

    fuel valve missing part of gasket.jpg



    http://litetek.co/Fuel_Tank_O-Rings_Yamaha.html


    http://2fiftycc.com/index.php?threads/fuel-tank-o-rings-etc.2835/#post-33872







     
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  2. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    *Kawasaki ZXR250C *Yamaha FZR250R 3LN1 *Suzuki GSX250 *Triumph Bonneville 750 T140V *Triumph Daytona 675
    Fuel Tap/Petcock

    Later type fits the 3LN1
    Has a different configuration but is more readily available
    Fuel tap internal o rings available from LiteTek as linked above

    fuel tap actual pics 3LN1.png
    3LN1 schematic.png
    3LN1 fuel tap diagram.jpg


    ..............................................................................................................................................



    fuel tap actual pics 3LN3-7.png
    3LN3-7 schematic.png
    3LN3-7 Fuel TAP Diagram.png
     
  3. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    gen fzr fuel pump.jpg
     
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  4. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Carb Bank details.jpg
     
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