Hi Grumpy, sorry its been a couple of days been flat chat. Have gotten back to my carby and done some experimenting ( hope this sounds right). What i done was put some clean petrol into a dish fully submerging the carby all except fuel inlet ( yellow circle) and primer port (green circle) as well as held the the peice of hose above fuel. Then i got a straw connected to fuel inlet and blew quiet hard, no air bubbles anywhere, I then blew into the hose attached ( on the bottom of carby) pulsating as i done it (breathing in and out) and had air bubbles coming out of middle of carby. Am i right in guessing the main diaphragm has a hole in it even though i have gone over it a number of times and not found anything, even held up to the sun i still cant see any light coming through it. Have also done as you suggested and checked to see if there are any differencres in old parts to new parts, none at all, except the new ones look better. Will try to get photos up tommorow.
Last edited by paul.foot; 20/08/14 03:08 AM.
