Once again, thank you, Grumpy. The mower is up and running with no fuel leaks as yet! I have ordered a couple of new parts for the carburetor as insurance against future problems. I do have a problem with the self propelling function, I can't seem to get the wheels to stop turning! I realise this maybe a belt or cable problem so will start a new post and seek further help. Lastly, I'd like to congratulate you on the professional way this forum is operated and the speed in which posts are responded to, well done.