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Thread: bike RPM problem

  1. #1
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    Ashfaq87's Avatar
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    Default bike RPM problem

    AOA all. my cg125 2008 model is giving problems when i start it. The RPMs start at 1500 and then keep dropping until 1000 at which point the bike shuts down. i have tried setting the RPM higher at 1700 but when I start my bike again in the morning the RPM come down to 1500 and keep falling. The bike doesn't stop when it is in running, but in neutral gear I have to rev the engine to keep the bike from shutting down. but when the bike is very hot (i.e. it has been running for some time) then the RPM is maintained at around 2000 and the bike doesn't shut down. can anyone help me with this problem. my local mechanic moved the screw that controls RPM and the bike was stable. but today again it gave same problem. i am looking forward to your replies.


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    The problem is due to lean mixture ask ur mechanic to set the mixer screw on carb.
    Exploring Machines is my Passion...

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    @imranbhatti - thanks for ur quick response. the bike shop near my house is closed. if u can tell me where this mixer screw is maybe i can try to do that myself.

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    daniyalahmad's Avatar
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    ^ There are 2 screws on the carburettor.
    One is of the RPM and the other is for fuel.
    You need to adjust both of them in order to get a perfect mixture.
    One of the most difficult things in the world is to know how to do something, and to watch without comment, somebody else do it incorrectly.

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    thank you for ur reply daniyalahmad.
    Eid mubarak to all

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