spit from carb

Discussion in 'Dyna Models' started by superglyde, Jul 19, 2009.

  1. superglyde

    superglyde Member

    15
    11
    0
    I have a mikuni hsr 42 with a force winder seems to spit every once in a while? thought it could be air leak but have gone over all bolts several times and made sure everything was tight. ???
     
  2. glider

    glider Veteran Member

    25,464
    108
    43
    Jetting or accelerator pump could be the cause not to mention an intake leak. Tight doesn not necessarily mean no leak.
     
  3. Redfish-Joe

    Redfish-Joe Senior Member

    2,307
    48
    10
    Went thru this on my buds 02 RG. Had to replace intake gaskets.
     
  4. Dynacologist

    Dynacologist Member

    43
    16
    0
    What the other 2 guys said,also make sure your fuel is clean and free of H20.But I would look to the jetting.A #48 slow speed jet will fix you right up if you have a free flowing aircleaner and pipes.Also need to richen up the air/fuel mix approx. 2+3/4 turns from closed.Let us know what you come up with, Dave...
     
  5. glider

    glider Veteran Member

    25,464
    108
    43
    A #48 low jet is a bit large, generally you don't need any more than a #46 to set it up properly.
     
  6. Dynacologist

    Dynacologist Member

    43
    16
    0
    A #46 is stock,gotta go up.
     
  7. SIFIHD

    SIFIHD New Member

    3
    11
    0
    on my 42 mikuni ... i adjusted the adjustment screw in the plastic top above the metering rod on the accelerator pump.... It had viberated loose and didn't squirt enough gas early enough and made a hesitation in the acceleration of motor... carb is simple enough even in changing jets

    signed....BUBBIE a friend of SIFIHD here in sunny arizona (HOT)
     
    Last edited: Jul 21, 2009
  8. glider

    glider Veteran Member

    25,464
    108
    43
    Glad you found the problem.:D