ph4824 wrote:
They told me no error codes registered but my fuelling was all over the place and before they could take it any further I would have to return the bike back to stock - which was bollocks and really Pd me off as it wasn't the parts fitted causing the problem!
Rather than being pd off with them, consider it from their perspective briefly.
You've taken in a bike with fuelling issues on which you have made some fairly big changes to things which would affect the fuelling. They don't have all the history, they hadn't been given an opportunity to test it as a stock bike so they would have to return it to standard to remove the most obvious (to them) cause of the problems.
Whether it did cause the issues or not, they aren't going to do warranty work around stuff which you have added, they'd need it standard to get the base set up working, anything which goes wrong after that is your issue, not warranty.
That's what I'd do and probably what they would do if the same thing happened again.
Should you have added that stuff the day before it went in to be checked?