FCR emulsion tubes
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Thread: FCR emulsion tubes

  1. #1
    Administrator KTMATVHQ Guru
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    FCR emulsion tubes

    One of the critisims of the FCR carb is the emulsion tube (what the needele slides up and down in and the main jet bolts on the bottom of) also referred to as the "needle jet"

    Ideally 4 strokes need a drilled emulsion which atomises the fuel as it's pulled up the tube, hence the name "emulsion"

    http://www.factorypro.com/products/F...u_hi_disp.html

    If you look in the guts of Weber or dellorto carbs used in off road racing automotive engines years ago they used drilled emulsion tubes and you could get a wide selection of drill pattern as to fine tune the fuel delivery.

    anyways Travis at Thumper can supply these very nicely made drilled emulsion tubes or needle jets. Significantly improved throttle response due to the better fuel atomisation compared to the stocker. installation details to follow

    FCR emulsion tubes-1.jpgFCR emulsion tubes-2.jpg
    powertechn2 likes this.
    KTM 505 SX: Web cams / 13.5:1 custom CP / balanced and modded crank / custom Vortex X10 ignition / Ported head / 43.5mm billet centre bored carb / KTM Akrapovic muffler / Mino hi vol water pump / 12 deg flexx's / houser stem / elka 5 / PEP PB1's and PEP LT rear / Walsh Flow A Arms / Quad tech seat & Foam / CF nose / FCI intake / relocated batt box / KTM Bill header / KTM factory SS Oil Pump setup / Manual cam chain tensioner Next round of mods: oil cooler........ the NEW TOP DOG 114 hrs…. best race engine I've owned

    KTM 554 XC
    : sx style crank, light weight SXF flywheel, TT sxf stator, steel linered cylinder, custom JE piston ceramic coating, plus 1 ported head / 807 cam, 43.5mm carb. Mino hi vol water pump. KTM Bill custom exhaust, FCI intake, JB A Arms, PEP PB1s front LT and rear , Lonestar axle, 12 deg Flexx's, CF nose, elka 3 steering damper, KTM factory nerfs, factory white plastic and graphics / gell cell battery Next round of mods: oil cooler........

    gotta stop spending $$$ on these KTM's...…..

    Polaris Outlaw 525 IRS - 2011
    , lonestar plus 2 A Arms, cut MXR front shocks (minus 1 ") with ZPS / ttripple rate, FUJ rear suspension rear shock mount units drops ride height 2", FUJ HD adj sway bar, 1.5” rear billet wheel spacers, Polaris nerfs, bumper and rear rack, Yoshi competition slip on, Pro Taper bars, acerbis hand guards, Trailtech GPS with billet protector. KTM throttle / Honda Front master cylinder and shorty lever / 41mm carb & hi flow intake runner / big filter / Billet FCR transition ring. Modified rear spring package / rear revalve.

    next round of mods: 8/33 cam, Hi Flow water pump and 540 cylinder / wossner piston waiting to go in, fastway 3 steering damper ala KTM setup, custom header using KTM XC header as a starting piece, light flywheel setup.
    gotta have something to modify this year !

    LTR 450
    , My Wife Nicola's ride & my back up mxer - 493 BB / JE piston / special order Yoshi motard cams / custom fueling map / tcs LT ZPS front end setup, TCS rear ZPS revalve / ims tank / TB exhaust / power commander / proflo - K&N / 14 deg flexx's / race nerfs / armadillo bumper/ Denton damper, next round of mods: ported head and carillo rod...... the clark kent of the ATV trio ! 210 hrs and still going strong ! the BB kit transformed this machine, it hauls the mail now !!!!

    A garage full of wheels and tires for them all........ speedway / sand / MX / cross country, over 30 at last count all on rims ready to rock

    NZ # 1 Vets champ 2013
    NZ Vets (40+) North Island MX champ 08, 09, 12 & 13
    NZ TT champ Vets (40+) 06, 08, 09,12 & 13
    Auckland ATV Club Sprint Series Champ 04, 05, 06, 07, 08, 09, 11, 12 & 13
    hope to get a good season in for the remainder of 2014.......finding time to ride being the biggest problem !

  2. #2
    Member Rookie
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    Factory pro sells direct. I purchased six a year ago. Also the dual squirt a/p from vertex. Very close to FI with both. Add a R&D float bowl with an externally adjustable leak jet and you have invested a lot of money.DocBob

  3. #3
    Senior Member KTMATVHQ Guru
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    I think Ktmbill is selling something in this line of thought also. Can't recall.
    637
    8/10 cam or stage 6 depends on who you but it from
    plus 1 head
    slingshot lock up
    fci intake, 43.5 carb
    plus 8 swingarm
    ktmbill exhaust
    JJ&a play axle
    high flow water pump
    direct drive spindle mounts (thanks nmachine)


    http://s1107.photobucket.com/albums/...rrent=drag.jpg

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  5. #4
    Administrator KTMATVHQ Guru
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    i could never get factorypro to return an email, gave up on them............. Travis is the only guy I could find who actually stocks them
    KTM 505 SX: Web cams / 13.5:1 custom CP / balanced and modded crank / custom Vortex X10 ignition / Ported head / 43.5mm billet centre bored carb / KTM Akrapovic muffler / Mino hi vol water pump / 12 deg flexx's / houser stem / elka 5 / PEP PB1's and PEP LT rear / Walsh Flow A Arms / Quad tech seat & Foam / CF nose / FCI intake / relocated batt box / KTM Bill header / KTM factory SS Oil Pump setup / Manual cam chain tensioner Next round of mods: oil cooler........ the NEW TOP DOG 114 hrs…. best race engine I've owned

    KTM 554 XC
    : sx style crank, light weight SXF flywheel, TT sxf stator, steel linered cylinder, custom JE piston ceramic coating, plus 1 ported head / 807 cam, 43.5mm carb. Mino hi vol water pump. KTM Bill custom exhaust, FCI intake, JB A Arms, PEP PB1s front LT and rear , Lonestar axle, 12 deg Flexx's, CF nose, elka 3 steering damper, KTM factory nerfs, factory white plastic and graphics / gell cell battery Next round of mods: oil cooler........

    gotta stop spending $$$ on these KTM's...…..

    Polaris Outlaw 525 IRS - 2011
    , lonestar plus 2 A Arms, cut MXR front shocks (minus 1 ") with ZPS / ttripple rate, FUJ rear suspension rear shock mount units drops ride height 2", FUJ HD adj sway bar, 1.5” rear billet wheel spacers, Polaris nerfs, bumper and rear rack, Yoshi competition slip on, Pro Taper bars, acerbis hand guards, Trailtech GPS with billet protector. KTM throttle / Honda Front master cylinder and shorty lever / 41mm carb & hi flow intake runner / big filter / Billet FCR transition ring. Modified rear spring package / rear revalve.

    next round of mods: 8/33 cam, Hi Flow water pump and 540 cylinder / wossner piston waiting to go in, fastway 3 steering damper ala KTM setup, custom header using KTM XC header as a starting piece, light flywheel setup.
    gotta have something to modify this year !

    LTR 450
    , My Wife Nicola's ride & my back up mxer - 493 BB / JE piston / special order Yoshi motard cams / custom fueling map / tcs LT ZPS front end setup, TCS rear ZPS revalve / ims tank / TB exhaust / power commander / proflo - K&N / 14 deg flexx's / race nerfs / armadillo bumper/ Denton damper, next round of mods: ported head and carillo rod...... the clark kent of the ATV trio ! 210 hrs and still going strong ! the BB kit transformed this machine, it hauls the mail now !!!!

    A garage full of wheels and tires for them all........ speedway / sand / MX / cross country, over 30 at last count all on rims ready to rock

    NZ # 1 Vets champ 2013
    NZ Vets (40+) North Island MX champ 08, 09, 12 & 13
    NZ TT champ Vets (40+) 06, 08, 09,12 & 13
    Auckland ATV Club Sprint Series Champ 04, 05, 06, 07, 08, 09, 11, 12 & 13
    hope to get a good season in for the remainder of 2014.......finding time to ride being the biggest problem !

  6. #5
    Super Moderator KTMATVHQ Guru

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    Would there be any reason why we couldn't drill out our own emulsion tubes. Or is there more to it than 4 small holes? Has anyone got any idea on drill size looks similar to a #100 metering jet to me - so 1mm

  7. #6
    Member Rookie
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    A dozen? Tiny holes. Tiny. Cnc stuff

  8. #7
    Administrator KTMATVHQ Guru
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    and the oring at the top to seal the tube into the carb body forcing the air through the drillings to atomise the fuel..............
    KTM 505 SX: Web cams / 13.5:1 custom CP / balanced and modded crank / custom Vortex X10 ignition / Ported head / 43.5mm billet centre bored carb / KTM Akrapovic muffler / Mino hi vol water pump / 12 deg flexx's / houser stem / elka 5 / PEP PB1's and PEP LT rear / Walsh Flow A Arms / Quad tech seat & Foam / CF nose / FCI intake / relocated batt box / KTM Bill header / KTM factory SS Oil Pump setup / Manual cam chain tensioner Next round of mods: oil cooler........ the NEW TOP DOG 114 hrs…. best race engine I've owned

    KTM 554 XC
    : sx style crank, light weight SXF flywheel, TT sxf stator, steel linered cylinder, custom JE piston ceramic coating, plus 1 ported head / 807 cam, 43.5mm carb. Mino hi vol water pump. KTM Bill custom exhaust, FCI intake, JB A Arms, PEP PB1s front LT and rear , Lonestar axle, 12 deg Flexx's, CF nose, elka 3 steering damper, KTM factory nerfs, factory white plastic and graphics / gell cell battery Next round of mods: oil cooler........

    gotta stop spending $$$ on these KTM's...…..

    Polaris Outlaw 525 IRS - 2011
    , lonestar plus 2 A Arms, cut MXR front shocks (minus 1 ") with ZPS / ttripple rate, FUJ rear suspension rear shock mount units drops ride height 2", FUJ HD adj sway bar, 1.5” rear billet wheel spacers, Polaris nerfs, bumper and rear rack, Yoshi competition slip on, Pro Taper bars, acerbis hand guards, Trailtech GPS with billet protector. KTM throttle / Honda Front master cylinder and shorty lever / 41mm carb & hi flow intake runner / big filter / Billet FCR transition ring. Modified rear spring package / rear revalve.

    next round of mods: 8/33 cam, Hi Flow water pump and 540 cylinder / wossner piston waiting to go in, fastway 3 steering damper ala KTM setup, custom header using KTM XC header as a starting piece, light flywheel setup.
    gotta have something to modify this year !

    LTR 450
    , My Wife Nicola's ride & my back up mxer - 493 BB / JE piston / special order Yoshi motard cams / custom fueling map / tcs LT ZPS front end setup, TCS rear ZPS revalve / ims tank / TB exhaust / power commander / proflo - K&N / 14 deg flexx's / race nerfs / armadillo bumper/ Denton damper, next round of mods: ported head and carillo rod...... the clark kent of the ATV trio ! 210 hrs and still going strong ! the BB kit transformed this machine, it hauls the mail now !!!!

    A garage full of wheels and tires for them all........ speedway / sand / MX / cross country, over 30 at last count all on rims ready to rock

    NZ # 1 Vets champ 2013
    NZ Vets (40+) North Island MX champ 08, 09, 12 & 13
    NZ TT champ Vets (40+) 06, 08, 09,12 & 13
    Auckland ATV Club Sprint Series Champ 04, 05, 06, 07, 08, 09, 11, 12 & 13
    hope to get a good season in for the remainder of 2014.......finding time to ride being the biggest problem !

  9. #8
    Senior Member KTMATVHQ Addict

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    I sell them too
    Chad Reed #90 Pro ATVA Nationals
    sponsor's 2013
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  10. #9
    Senior Member KTMATVHQ Addict
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    Quote Originally Posted by ktmbill View Post
    I sell them too
    How much???? PM me info please
    5lblmbn2009 likes this.
    OXC/AXC/MOC 247
    MID SOUTH A+30

    2013 Sponsors: Houser Racing, Dragon Alliance, Rath Racing, MSR Racing, Hinson Racing, HiPer Technology, JT Sprockets, Outlaw Racing, Go Pro, Dirtworks

    08 450XC Bunch of crap not worth mentioning...........
    08 525XC Converted to a 450XC

  11. #10
    Senior Member KTMATVHQ Member
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    Walt, you do this?
    KTM 505 SX

  12. #11
    Senior Member KTMATVHQ Addict

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    They are $36.00 shipped
    Chad Reed #90 Pro ATVA Nationals
    sponsor's 2013
    ALL 4 RACING L.L.C. Racing products Bills Headers

    a4rheaders.com

    Village Motorsports
    PEP Racing Shocks
    Four Werx Carbon
    Web Racing Cams
    Dirt Tricks
    Skorbordz
    Volairathon Machining

  13. #12
    Senior Member KTMATVHQ Member
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    KTM Bill does this effect the jetting? Or is it just a cleaner burn, as I am thinking about ordering one from you.
    Last edited by 426power; 12-31-2012 at 03:09 PM.
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  14. #13
    Senior Member KTMATVHQ Addict

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    No jetting change I have more coming in by the end of the week Just sold the last one the holidays is mess me up
    Chad Reed #90 Pro ATVA Nationals
    sponsor's 2013
    ALL 4 RACING L.L.C. Racing products Bills Headers

    a4rheaders.com

    Village Motorsports
    PEP Racing Shocks
    Four Werx Carbon
    Web Racing Cams
    Dirt Tricks
    Skorbordz
    Volairathon Machining

  15. #14
    Senior Member KTMATVHQ Member
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    Are these suppose to give better throttle response or what?
    KTM 505 SX

  16. #15
    Senior Member KTMATVHQ Member
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    Never mind I went back and read all of the thread lol
    KTM 505 SX

  17. #16
    Senior Member KTMATVHQ Member
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    KTM Bill I want one let me know how to make payment to you.
    2014 Sponsors:
    HMF
    Rocket Ron
    GT Thunder
    Tiexiera Tech
    Houser racing
    Fasst Company
    Fly/WPS
    BNR (Big Nuts Racing)
    Hiper
    Powermadd
    GBC Tires
    Rath Racing
    Fourwerx
    Gaerne
    Leatt
    Twin Air
    Scott
    Bubba Power ( Enigine)

    2009 KTM525XC

  18. #17
    Senior Member KTMATVHQ Addict

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    pay pal is [email protected]
    Chad Reed #90 Pro ATVA Nationals
    sponsor's 2013
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    a4rheaders.com

    Village Motorsports
    PEP Racing Shocks
    Four Werx Carbon
    Web Racing Cams
    Dirt Tricks
    Skorbordz
    Volairathon Machining

  19. #18
    Senior Member KTMATVHQ Member
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    I just wanted to tell you how smooth this purchase was with KTMBill. Super communication and just great to deal with. Thanks Bill
    2014 Sponsors:
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    Hiper
    Powermadd
    GBC Tires
    Rath Racing
    Fourwerx
    Gaerne
    Leatt
    Twin Air
    Scott
    Bubba Power ( Enigine)

    2009 KTM525XC

  20. #19
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    Post up results when you guys get them installed
    08 525 baldwin oil cooler, prm bumper,skid plate mostly stock. 08 450 99mm bore, baldwin head 806 cam, no thermostat

  21. #20
    Senior Member KTMATVHQ Member
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    I will. I am putting the motor back together Sunday and will let you know after that.
    2014 Sponsors:
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    Rocket Ron
    GT Thunder
    Tiexiera Tech
    Houser racing
    Fasst Company
    Fly/WPS
    BNR (Big Nuts Racing)
    Hiper
    Powermadd
    GBC Tires
    Rath Racing
    Fourwerx
    Gaerne
    Leatt
    Twin Air
    Scott
    Bubba Power ( Enigine)

    2009 KTM525XC


 
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