Hi. I'm new to the hobby and just bought a used T-Maxx 2.5 off ebay. It showed up with half a tank of fuel and ran like a dream. The fuel was pink but that's all I know about it. After the tank was empty I refilled with the blue top fuel (20%) that I'd bought and the engine immediately flooded when I tried starting. Eventually I got it to start but it was blowing raw fuel out the exhaust. I leaned it out and ran it for a few passes, but it wouldn't idle and I can't get it to start again. Do different fuels require different settings? Any suggestions? Thanks for any help.