I too have this problem.
I have pulled all of carby apart to clean (as was not starting), put all back together (have checked and all seems to be back together correctly). In the process i have replaced with new, the float, o ring & needle, and now have fuel pouring out of primer. Have read most of comments on this topic, attended to them, but still having problem, all suggestions welcome urgently.

Last edited by smn1_; 07/01/11 11:41 AM.