[ducatiman]

WTF? With the flower petal like appearance...would indicate they were not seated correctly....and/or subjected to chemical exposure? creating such an abnormal pattern? Did you use some sort of starting fluid or carb cleaner?

You could try washing them in warm soapy water (NO harsh chemicals), followed by bathing them in a product called Rubber Renue...see what happens. But NO GUARANTEES.

Next cheapest option? Probably...look for used slides or salvage carbs on the board here? Or ebay?

Other options...
if interested I've got a fully refurbed, like new carbset in stock for '08-'12 models (you didn't specify what year you've got in your post)

I've got aftermarket rubbers in stock, they require intense surgery to swap over....but can do if needed.

PM me if I can be of further service.

Good luck with it.