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Thread: Yamaha YBR 125 - Missing Factor

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    Question Yamaha YBR 125 - Missing Factor

    AOA YBRians,

    anyone here who is observing bike is doing missing at higher rpm , in my case if you drive it normally and lower RMP below 8000 than bikes work smoothly as soon as you try to increase RPM 8K + bike will start missing some time jerks seems like bike have no issue with race but asking for more fuel or current whatever i have no clue.

    any body faced this YES/NO if Yes any solution till now??

    [Proud Owner of Yamaha YBR 125 - MashaAllah] -- [Smartphones/Computers "Keera" ] -- [Fan of Traveling/Adventure]

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    Default

    Quote Originally Posted by saboor73 View Post
    Better spark plug
    Quote Originally Posted by patrolvtc View Post
    Which one the original one ???

    Sent from my LG-F430L using PW Forums mobile app
    No not the stock one a friend is running one in his bike will ask him

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    Quote Originally Posted by saboor73 View Post
    No not the stock one a friend is running one in his bike will ask him
    Thanks in anticipation

    Sent from my LG-F430L using PW Forums mobile app

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    Mutlitip spark plug kaisa rahae ga. Cdi ignition is for higher rpm whereas tci are for low rpm. So i guess we need stronger spark plug.

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    Quote Originally Posted by adeel060 View Post
    Mutlitip spark plug kaisa rahae ga. Cdi ignition is for higher rpm whereas tci are for low rpm. So i guess we need stronger spark plug.
    Tci Handel's high rpm better cdi need big capacity to charge coil quicker on high rpm

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    Default

    Phir ab konsa spark plug use kiya jay!! You got any details..bro!! Waisae maera ybr 7-8k rpm kae bheech mae missing jerk lagata hae. But no constant missing.

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    Default

    Quote Originally Posted by saboor73 View Post
    Tci Handel's high rpm better cdi need big capacity to charge coil quicker on high rpm
    bhai ji apnae plug ka nahi btaya abhi tak??
    DAVIL MAY CRY

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    Hello guys .. seems that you are missing old stuf 😂😂
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    Sent from my SM-A500H using PW Forums mobile app

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    Default Missing Issue

    To all those who are facing missing issue, it is mostly related to mixture setting.
    The stock setting of YBR from factory is lean , dont know why they did it. If anyone of you visit Shareef auto's he will tell the same story to everyone, that petrol isnt of good quality, use high octance , this and that. However after many time complains he still wont change your mixture setting, dont know why.
    If you continue forcing him after repeated visits then he might adjust your mixture setting.

    To all those who are frustrated from missing, This bike has a butterfly carburetor and mixture is on air.
    There is a small screw at the bottom of the carburetor,

    If you want a Rich mixture, turn screw clockwise (Less air, more fuel)
    If you want a Lean mixture, turn screw anticlockwise( More air, Less fuel)

    My suggestion is to turn the screw clockwise just (1/4 turn) and check, if problem is there , turn more (1/4 turn) (Total 1/2) turn with a small watchmaker flat tip screw driver.

    Hopefully it will remove the missing issue.
    Also Check your air filter, it should be dust free and cleaned









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