carburetor leaking intermittently

2 replies to this topic
  • yz450scott

Posted June 17, 2010 - 05:28 AM


Help! I completely cleaned my carb, removed all the jets, cleaned them with carb cleaner and blew everything out with air. Now that I reinstalled everything, my carb overflow leaking intermittently. Every minute or so, about 10 drips come out the overflow fast. I removed the carb and checked the float height and verified it was at specs. 8mm..It did it again, so I reset the float at 10mm which I think is the right direction to now allow as much gas in the float bowl. It still does it...What am I doing wrong? Is there possible some other cause? I took out the needle valve and assembly that it goes into and it is clean and the tip of the needle looks new...I am stumped...Any help would be appreciated...:thumbsup:

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  • Dudemeister

Posted June 17, 2010 - 06:20 AM


How does your float valve look? Is it moving smoothly (remove the float bowl, look from the side and move the float up and down)?

  • grayracer513

Posted June 17, 2010 - 08:00 AM


It appears the float needle isn't sealing, which is either due to dirt embedded on the tip (may not be visible) or a wear or dry-out condition.

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