Thanks bruce, plenty of fuel getting to the carby if i take the hose off from the back of the carby.It flows fine, and they are new hoses also.
It does sort of go to low revs, stays there for a while, then slowly dies. So no, it doesn't stop suddenly. The spark plug seems pretty new, guess it wouldn't hurt to try a new one. I have also tried taking the plug out, making sure its not wet etc.
Would you know the correct plug for this engine? I think its a denso plug in there at present.
Thanks.