Why does carburetor overflow

I have NO gas leak now. Thank you for the replies! Joined Feb 14, Messages 1, Glad you got it fixed. Here's a shot for future reference if you have problems. Hawk Member. Joined Feb 11, Messages Click to expand Molotov Member.

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Replies 7 Views Monday at PM Karl Snarl. When there is not enough fuel, it is lean. Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Lifehacks Why is gas coming out of the overflow tube? Ben Davis April 12, Why is gas coming out of the overflow tube? Why is my Harley leaking gas? What causes gas to pour out of carburetor? What happens when a carburetor float sticks?

What is the screw on bottom of carburetor? What is the screw on a carburetor for? How do I know if my carburetor is running rich? What causes rich fuel mixture? I have had the carb apart and the float valve looks in good condition.

The floats also move freely and everything seems to be ok. I have also checked the float height and thats fine as well. What else could it be? N Dentressangle 3, posts months. It can only really be the needle valve, can't it? They can look fine and still leak. I've occasionally managed to fix them with fine sandpaper to the needle to remove the groove, but really you sound like you need a carb rebuild kit with new needle valve.

It'll be worth the money - worn and knackered carbs are a real PITA. Its now somehow sorted! Stripped the carb down again, checked everything and noticed the overflow pipe was very close to the float and causing it to rub slightly so i bent it out of the way. Finally i drained the crud out of the tank and refilled with fresh petrol. Plugged it all back in, fuel tap on, no leak!

Started up and ran the engine for a while with a few revs and stopped again and it all seems to be ok.