Quick update:
I got to work this morning and thought I'd try and follow @
Tubbyengineer's instructions as it looked pretty detailed and a good step by step, and all is good. I do have to work out how many coils equals what. I got 1.6 using .28 wire wrapped around a 2.5 drill bit. I didn't torch the wire as I don't have a torch (does this make alot of difference, and what is the idea of torching as I have no idea?).
Anyway I got it done. Got the wire wrapped around the screw. Is there a good way to do this as when I do it the wire kept popping out from under the screw head? Then got her fired up and no weird taste.
My only real problem was one I filled it up half the juice seemed to come out the air hole at the bottom but I'm guessing that this was because I filled it up before I put the top cap on and then turned it upside down. I also think it could have been me not filling very carefully as I used the bottle I emptied the juice from the kfl before I rebuilt, and this didn't have a nipple top on it and I could've inadvertently tipped some down the middle.
So really I would say a success. Certainly alot better than my attempts yesterday so thank you to everyone who replied yesterday and especially tubbyengineer who has probably written that quick guide so many times he can do it with his eyes closed.