Idles with choke open but stalls on acceleration

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I've finally got the carbs cleaned out and back on the bike with a new fuel filter for good measure. The carbs were tricky to get back in especially getting the throttle cables fixed again. It's very easy to get the accelerator cable caught around a lower connection on the carbs, so I would always advise to get the accelerator and decelerator cables connected before pushing and fixing the carbs back into the carb rubbers and air box.

On turning the ignition the fuel filter obviously kicked in and took longer than usual to stop pumping and then all it  took was a few cranks of the starter to get the fuel flowing through the system again, but once fired up it was roaring with the throttle open.

I've tried to attach some photos of the white gunk that had built up in the carbs. It was almost like the gelatin from a pork pie but not as tasty!
[smg id=2537 type=preview align=center caption="FZS600 clogged carb1"]
[smg id=2538 type=preview align=center caption="FZS600 clogged carb2"]
Thanks for everyones help and hopefully this post may help someone else in the future from a google search.