1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

RB carb mods

Discussion in 'Vintage/Left Kickers' started by highdez1981430cr, Dec 29, 2010.

  1. highdez1981430cr Husqvarna
    AA Class

    Location:
    Yucca Valley,Ca.
    Has anyone had RB do the intake bell wing and carb bore done?

    What performance gain did it give you?

    What jetting changes did you have to do?
    highdez1981430cr, Dec 29, 2010
    #1

  2. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Great mod, works well and that guy has a nice shop / does good work. Those wings add a small but noticeable amount of roll on power and better low end fuel metering. It did make a buddies YZ250 a little more sensitive to needle and position though.
    Motosportz, Dec 29, 2010
    #2

  3. highdez1981430cr Husqvarna
    AA Class

    Location:
    Yucca Valley,Ca.
    Do you know the diameter that he taper bored it to ie 39-41mm?
    highdez1981430cr, Dec 29, 2010
    #3

  4. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    No look up Rollie on TT and ask him 9it is him with the YZ250). Tell him I sent you so he knows whats going on. :cheers:
    Motosportz, Dec 29, 2010
    #4

  5. 1987430WR Husqvarna

    Cant help but ask, but is the RB you are referring to out of England?
    1987430WR, Mar 30, 2011
    #5

  6. Joe Chod Husqvarna
    Pro Class

    Location:
    upstate NY
    no Oregon or Washington or some where else rainy all the time but good loamy dirt for riding
    Joe Chod, Mar 31, 2011
    #6