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DT125R FORUM

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  4. Suddenly bogging causes

Suddenly bogging causes

Scheduled Pinned Locked Moved Carburetor
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  • Elan nE Offline
    Elan nE Offline
    Elan n
    wrote last edited by
    #1

    Hey y'all,

    I fixed my dt125x a while ago and had a blast riding it for now around +-300km. But yesterday i came to this problem, drove 30 km's en went for a 15 min break suddenly after that it had problems with starting and bogs out if i give full throttle while idling and dies. Driving was still okay. Jetting should be on spot and a little on the richer side, jetted it for weeks till i got it right (240 main, 27.5 idle) float height properly set according the right manual (16mm if im right), Snorkel still installed and have only a romeu upper exhaust. The sparkplug(br9es, +-300km) still looks fine in my opinion and i also checked the reeds and also nothing to see. For the rest has it a new ignition coil(oem), new intake gaskets, cleaned and properly oiled air filter. Driving temperature is always very stable around +-71 degrees Celcius. Hope someone can help me 🙂

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    • CalumC Offline
      CalumC Offline
      Calum
      wrote last edited by
      #2

      HHhmm, that's annoying!

      A common one is if you accidentally got water in your exhaust! I've seen this before, if the expansion chamber has water in it (if you washed it, left it outside, rode it in the rain) then this can cause it to bog.

      You've said you put a new pipe on it, but just worth taking the exhaust off and tipping it upside down.

      Poor fuel can also cause these types of problems. What does the colour of your spark plug tell you?

      Always Originate, Never Pirate!

      Elan nE 1 Reply Last reply
      0
      • CalumC Calum

        HHhmm, that's annoying!

        A common one is if you accidentally got water in your exhaust! I've seen this before, if the expansion chamber has water in it (if you washed it, left it outside, rode it in the rain) then this can cause it to bog.

        You've said you put a new pipe on it, but just worth taking the exhaust off and tipping it upside down.

        Poor fuel can also cause these types of problems. What does the colour of your spark plug tell you?

        Elan nE Offline
        Elan nE Offline
        Elan n
        wrote last edited by Elan n
        #3

        @Calum maybe i could check the exhaust to be sure indeed, ill try that first. Some time has passed and it suddenly was gone but came back after a short while, very weird haha. The spark plug color is deer brown so a little rich but more for climate purposes because in Belgium the weather is so annoyingly unpredictable. But it would be weird if it was fuel related. Because it drives very well in alle the conditions for the past 300km. A have a bad habit to be a perfectionist so i can break my mind about to find the cause haha.

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