I have an 85 ATC250R and the carb was just rebuilt before I got it and it still leaks somehere. If you know what is causing this please help.

 

You need to give some specifics. Maybe some of us can help. Internal? Bowl? Hard to diagnose with the given info.

 

Check the float vavle, if you changed it make sure the seat is clean. Also check the float level it sould be .61 inches. If all that fails also check the clip on the float vavle, I had a problem with this. If it is two tight (the clip) it will not allow the valve to side all the way in. Make sure the clip is loose enough to allow it to dance around a little. Write back if you don't understand.

 

I did that a couple days ago and it still leaks, I will check it all again today. Thanks for the help.