fuel coming out of carb/air intake

[kapzi]

can anyone shed some light on how this happens , i rarley turn the fuel valve off is this flooding the carby?

if u want some pictures of my build here is my other post http://motorbicycling.com/f4/wrong-fuel-mix-help-31296.html

Its a standard NT carb.

 

[biken stins]

Turn fuel valve off. check float level. check for dirt,rust,and or other grime.

 

[rohmell]

A little bit of debris on the needle and/or seat prevents the needle from sealing off the fuel, so it constantly flows into the carb and out of any available hole.

 

[kapzi]

hmm interesting ill give it a fresh clean 2morrow thanks

 

[bishop letov]

Check the float heighth too.. The mould line or the Brass seam should be about level with the gasket when its turned upside down. Check to make sure no debris as stated earlier. those are the two biggest fuel overflow issues with any carb.

 

[kapzi]

im not A1 with mechanics is the float inside the bottem bit of the carb?

 

[rohmell]

Yes, it is inside the bottom of the carb and it rises and 'floats' on top of the fuel, and pushes the needle into its seat to stop the fuel flow when the proper fuel level is reached.