@
Mitchell_hs
Dump your tank of fuel, and fill with plain 87, don't waste your money.
Also you need to verify the tank drain is working properly, it's the hose coming off the back of the tank. You need to blow air thru the hose, and also back into the tank with an air compressor, make sure you have the cap open.
I had issues with water in my fuel on my EX500, and the cause was the tank drain was clogged, once I blew it out, no more issues with water.
If your in need of carburetor services PM @
ducatiman, I personally vouch for him.