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

need to know standard jetting for 79 or/cr 390

Discussion in 'Vintage/Left Kickers' started by patgas, Sep 14, 2010.

  1. patgas Husqvarna
    A Class

    Location:
    dolgellau/ wales
    hi does any one know standard jet sizes for 79 or 390 probally same as cr,need main jet size,pilot and clip position.at mo it has 360 main and not sure of pilot as i cant read it heeeeeeeeeeeeeeeelp jetting is my achiles heel:banghead: forgott to say its a mikuni 38 i and cant seem to find settings for this carb.
    patgas, Sep 14, 2010
    #1

  2. tommie d Husqvarna
    AA Class

    Location:
    Kansas
    Husqvarna Motorcycle:
    Twenty one and counting
    Other Motorcycles:
    Two Honda's
    The parts list should show you the stock jetting that it came out with. Clip position I can't tell you but it would be in the owners manual if any one has one. I know the 78 390clip position was 4th from the top.
    tommie d, Sep 14, 2010
    #2

  3. Bryll Husqvarna
    AA Class

    Husqvarna Motorcycle:
    Some
    Other Motorcycles:
    Some
    Here's something a guy posted at a Swedish carb site.
    Don't know if it will work for you, but it could be a reference.

    HVA 390 -79
    Mikuni VM 38
    Main jet 430
    Pilot jet 45
    Needle jet R2
    Needle 6DH3
    Air jet 2.0
    Slide 2.0
    Bryll, Sep 14, 2010
    #3

  4. oldhuskychuck Husqvarna
    A Class

    Location:
    Denver Co
    remember, those are sea level settings...
    oldhuskychuck, Sep 16, 2010
    #4

  5. HuskyT Moderator

    Location:
    Corona, California
    HEre is 0 to 3000 ft elevation

    From PRocircuit 1980

    "Jetting for 250/390 CR 1980 ProCircuit
    Here is the reccomended jetting for the 1980 250/390 CR from ProCircuit for Southern California elevation 0 to 3000 ft

    Pro Circuit knew Huskys back in the day information is a direct quote from ProCircuit

    250 CR Husky 1980
    38 mm Mikuni Round slide
    Stock Needle 6DH3 change to 6F15
    Stock Main jet 430 change to 480
    Stock R2 Needle Jet change to R0 or Q8
    Go to a 60 Pilot
    These changes from the stock factory bike will result in cleaning up the bottom end and make the top end a lot fatter.

    390 CR Husky 1980
    38mm Mikuni Round Slide
    all the same changes but go with a 50 Pilot"

    Hope this helps... this should be similar to a Procircuit running the AAsch Pipe.


    T
    HuskyT, Sep 17, 2010
    #5