Which fitting, Andy? Putting the tank back on after this valve check, and we've not been able to get the gray connector/collar to latch on to the fuel pipe elbow. Nothing looks damaged or out of place on the collar, little fingers all there and springy just like the other connector. One thing, it seems the flange (A) has lost some of it's up and down movement, it's not locked up completely, but there's more play in the black connector for sure. Going back thru some of the threads I'm starting to get a sick feeling, here's a copy and paste of a post from Josh a year or so ago:
"I did this once because one of the plastic connectors had been broken by a main dealer and I had to try and get it back on.
I would recommend anyone avoid this if possible, the plastic collar on the connector is utter crap. Fragile and VERY difficult to get off. If you break one of the teeth inside the part labelled 'A' you have to order a whole new fuel cassette for £450+
When I watched a different dealer take the tank off, the plastic collar (A) has to be squeezed/pinched from the side at two specific points. This releases the locking teeth inside the collar and with a fair amount of force, the fuel line can be pulled out.
The problem being, if you don't squeeze in the right place and yank the fuel line out too forcefully, it breaks the connector and you are up shit creek.
Which is exactly what a useless mechanic did to my bike. Then shoved the fuel line back in and hoped I'd never notice... Luckly I didn't end up with petrol all over my legs like some, the fuel line just popped out when I had to go correct the pinched breather pipe, also caused by the clueless mechanic.
BE SUPER CAREFUL removing the fuel lines on this bike. The plastic connectors are utter garbage."
I'm trying not to panic, but oh me. Do you have the details on exactly what broke and is being replaced? Thanks!
Sarah