Hi, thanks for getting back.
Fuel getting to both float chambers, all jets are clear, feed pipe from tank free flowing, when i start her it will not pull the fuel through the carb, i can manually lift the main needle slide in an attempt to draw more fuel but no affect, i have checked the diaphragm and it is in good order, i have pulled a small vacum on the diaphragm and it functions correctly, it operates the needle up and down.
Yes i agree it has to be a blockage somewhere or possibly sucking air but i have checked everything and can not find the problem.
The bike has been parked up in my garage for 10 years and it was running perfect when i put it there.