Question about 2003 Yamaha YZ 125

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YZ 125 isn't getting fuel into it's cylinder

My YZ125 isn't getting fuel into it's cylinder from the carb. It cranks over and wants to fire. The plug is getting spark, it has a brand new top end. I brought the carb to my buddy who works on bikes and my carb is working, but the bike won't draw the mixture into it's cylinder. I'm at my wits end and am about to bring it to a shop to have it looked at. I just want to ride it.

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  • Anonymous May 20, 2009

    Check light on

  • marajade1324 May 29, 2009

    Everything is working as it should. the bowl fills up doesn't leak, all the jets are clear i cleaned them myself and blew them out with compressed air and the bike doesn't air through the wrong way and it still refuses to pull gas into it's cylinder. I managed to get it to start up and then it died it did it three times and then stopped getting gas into the cylinder again.

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  • 138 Answers

Check the carb bowl and make sure it is filling if so check the carb jets and also check the power/reed valves.

Posted on May 20, 2009

  • Brittany Garner
    Brittany Garner May 29, 2009

    Recheck the power/reed valves and carb again as this is the only things that will prevent gas going into the cylinder

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