2007 crf50 carb
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    afc1261
    Posts: 66
    Joined: Thu Sep 01, 2005 7:26 pm

    2007 crf50 carb

    by afc1261 » Thu Jul 29, 2010 6:44 am

    I keep reading these posts about air screw adjustment and lowering/raising the needle on this little 50. Mine idles bad so I removed the carb and "got to know it"....the needle only has one groove so no adjustment can be made. there is no airscrew on the side of the carb next to the idle adjustment screw and the carb is made by keihin. I bought the bike used. Is this the stock carb or did the previous owner pull a fast one on me. What carb should it have? I want a carb that is adjustable. There are no mods on this bike and I don't plan on adding anything other than switching out the airfilter. Thanks in advance for any help!
  • ericnottelin
    Posts: 1
    Joined: Tue Oct 25, 2011 1:38 pm

    by ericnottelin » Tue Oct 25, 2011 7:00 pm

    My son has a 2005 crf50 and it doesn't sound like it is stock. If it stock, It should have 5 notches on the needle and a air/fuel mixture screw next to the idle.

    Now, what is causing the bad idle. What do you mean by idling "bad"? That is the first question we need adress

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