I'm taking the tank off my Hyper to check valve clearances. One of the fuel quick release connectors seems to be seized. The other one rotated left to right, no problem, and popped off. This one has maybe 2mm of movement left to right, and won't move off the tank at all. I've tried WD40 and a little bit of heat, also tried prying it off with a screw driver but fear this will damage the plastic clip. Help!
If the fuel spigot is anything like the one from which you’ve removed the fuel pipe it’s probably just crud from the rear wheel seizing it in place. Get a spray can of brake & parts cleaner, Holts do one available in any motor factory for about a fiver. Give it good blast and soak with that. Then, when it’s dried off (it evaporates quickly) try using a penetrant (WD40 is not a penetrant) such as Transyl by Owatrol (or ANOther) and it’s a case of squeezing, wiggling and pulling, it will come but don’t overly force it or you’ll end up with worse problems if it breaks.
Not familiar with this model but if it’s a “simple” push from either side on the grey plastic, get a pair of fuel connector pliers. Cheap as and worth their weight in gold
sorry we are all coming at you, with loads of advice, but you will get there, the main ingredient being patience. Carefully swivelling/rotating, as you have already done, is good to start with before you even attempt to separate it, does it swivel quite freely? Next, as Keith says, make sure you're squeezing the correct part of the quick release. Finally, and this is often the culprit, if the attached hose is pulling hard in one direction so that the connector is not "in repose" then this is often all it takes for the connector to decide to not play ball. A clue to this, will be the way the connector revolves, as you will be able to sense that it's being "tugged" . Be careful what you add in the form of spray, these can often make things worse from personal experience.
Thanks all, I was squeezing the incorrect face at first, until I got the second one off and realised how it releases. It's not rotating freely like the other one was, so I'm gently trying to get it to rotate before pulling (and probably breaking something) it's gone from not rotating, to moving a couple of millimetres.
I remember trying to undo some of these on my 749. I had done it many many times before but for some reason one of them just wasn’t playing ball. I realised after lots of swearing that I was simply squeezing the wrong parts together. Moved my fingers 90deg and off it came. Doh.
They are sometimes tight to residual fuel pressure in the line which doesn't allow for easy removal. Best is either remove pressure buy cranking after removing pump fuse and coil pack, then make sure that you push the connector into it's fitting then push the release tabs. I often have to use this method on fuel fittings doing filter changes.
