My First 7

[WJPez]

i am guessing it doesn't simply need tightening or the bolt threads have gone so won't tighten?
if threads have gone and problem is lack of petrol and messed up mixture you could strap it back tight (seen it done for testing with cable ties)  to see if that solves it, then get thread helicoiled to fix permanently.
Andy

I have tightened the bowl, i undid the 2 fixings on the choke and it has all fallen apart in my hand. I am struggling to get it back together. The large spring is causing issues.

Wayne