Weird revving issue and bike wont idle

[jonest27]

Happy days  :lol

fingers crossed, I take it your idle is ok now

You said when you took the carbs off, they were prety rank, was there any sign of water in them, if so check your tank, otherwise the problem will re-create itself 

Didnt really give it time to warm up to check the idle properly as it was still on choke.
Dont think there was any water in there and there was no rust just loads of gunky crap. but I wouldnt know how else to check for water also when taking them off and putting them back on it was pissing down, so I guess if I was testing for water that would have given me a false postive.
any way you know of to check the tank?