Question about 2004 Yamaha TT-R 125 L

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Yamaha TTR 125 L won't idle

2004 Yamaha TTR 125 L will start and idle (low) with the choke on. If I turn off the choke, i have to keep the engine revved to keep the bike going. There is no hesitation on acceleration. The bike sat for six months. I soaked the carb and changed the gas in the tank. What is the problem? Or what do I need to do next?

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  • Anonymous Jan 20, 2009

    I have

  • Anonymous Mar 04, 2009

    Yep mine is doing that too. Say's on the frame to adjust the throttle set screw, that's not on the carb but on the throttle cable?

  • Anonymous Apr 13, 2009

    Wife Dropped her 125 and it started being hard to find idle.. now it wont start at all... It acts like its not gettting fuel.. Cab teare down next

  • Anonymous Mar 23, 2014

    Why will the ttr 50 idle with the choke on but won't idle when you turn the choke off

  • Doug Dec 03, 2016

    Then take a screw driver or ratchet, give the carb a few solix taps on the side of the float bowl. If the carb still leaks fuel out remove it. Take off the float bowl, omove the float retainer pin, float, and plunger. When doing this keep a close eye ont for debris or damage that would cause the float to stick open. Inspect the plunger to be sure the rubber tip is not cracked or damaged, it must be in good working order to shut off fuel flow. Clear any debris from the carb and jets since you are that far into it anyway it wont hurt doing so. Re-install the float components and check that the float is adjusted correctly. Google the correct float level specs. for your bike to be accurate. Then put it back together, axjust your pilot air screw to factory spec. Start the bike anx check for proper operation. Once it warms to normal operating temperature adjust the Idle to your preference. Good luck

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I cleaned the carb on the bike and put it back together and now it is as if the float is stuck open and is just dumping gas out of the carb all over the ground.

Posted on Sep 02, 2009

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This is very tipical. when bikes are stored the fuel varishes up the jets & needles. soak the carb. moving it back and forth in the soak solution. then blow every jet and orfice with a controlled air source. note: any speck of rust or dirt can plug these jets. pay attention to detail and do every thing twice. then install the carb and adjust it to your riding style. later Spike

Posted on Mar 25, 2009

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The problem is that your idle is adjusted to low just like mine, you need to adjust your idle

Posted on Aug 04, 2009

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I got a 2008 ttr 125 from this guy and he said it sat for 6 months. it wouldn't start at first so i bought a new spark plug and tried to start it, wouldn't start, drained the gas put new in. wouldn't start, then i took the carbueator off and clean it out wouldn't start, so i took it off one more time and clean it really good with carb cleaner and clean out all the holes with a wire and then put it all back together then it finally started but now it starts with the choke on and idle with the choke on but soon as i take the choke off it doesnt want to idle i got to keep it going cant let up all the way on the throttle or else it just shuts off. I going to mess with the idle screw turn it up see if that works, but does anybody have any suggestion? oh and i also bought a new battery for it for the electric starter and that all works. just wont idle?

Posted on May 09, 2012

  • donnalmmon
    donnalmmon May 09, 2012

    i got a 2008 ttr 125 from this guy and he said it sat for 6 months. it wouldn't start at first so i bought a new spark plug and tried to start it, wouldn't start, drained the gas put new in. wouldn't start, then i took the carbueator off and clean it out wouldn't start, so i took it off one more time and clean it really good with carb cleaner and clean out all the holes with a wire and then put it all back together then it finally started but now it starts with the choke on and idle with the choke on but soon as i take the choke off it doesnt want to idle i got to keep it going cant let up all the way on the throttle or else it just shuts off. I going to mess with the idle screw turn it up see if that works, but does anybody have any suggestion? oh and i also bought a new battery for it for the electric starter and that all works. just wont idle?

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Remove pilot jet out of carberator. Clean and re-install

Posted on Mar 14, 2009

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Did you adjust the idle.or tamper with the air screw when you cleaned the car? also did you take the jets out and blow them out with a air nossle? try that if you haven't already.

Posted on Nov 26, 2008

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