Carby dellorto sha… need help tuning

Discussion in '2-Stroke Engines' started by jbburns99, Jul 6, 2014.

  1. jbburns99

    jbburns99 New Member

    just picked up a new dellorto sha carb (it is a clone). got it on the bike and running. no power, won't idle.
    removed air filter and she runs great though still no idle. soo need a smaller jet i'm guessing? I was wondering what the size
    of the stock jet is, and what size to change to. i live at high altitude (roughly 7000 ft). I was also wondering
    if this carb has a simpler way to increase airflow, such as the slide needle that comes with the stock carb.
    This thing is pretty foreign to me and I'm not really wanting to pull it apart until i get a little bit of background from you
    experts. any help is appreciated!
    Also already orders some 50s jets

  2. jaguar

    jaguar Well-Known Member

    that carb has a main jet as the only changeable jet.
    other than that it requires southern engineering.
    click on my signature link to read how I adjusted mine before I got rid of it for a truly adjustable carb.