:smile::thumbsup:I removed tank after draining, and thoroughly cleaned it, reinstalled with 93 octane with fuel treatment, started and ran fine with just one little hiccup. Let it set a while, it started and ran just fine again with another little hiccup. I think it is going to be fine now. I have used same gas out of same tank, in my grasshopper, with no problems. Also I always use "Stabill" and keep gas containers stored inside on a wooden rack off of the ground and am very careful about contamination of funnel etc. It must have not been quite enough!!
Thanks for the help, Lofish