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I have the same auger with the same problem,tried new fuel,new plug,carb redone,warm it up for 15 min. runs great. been like this for 4years. I think it needs anew home.
Trade it in for a Jiffy....... hundreds of commercial fishermen can't be wrong Blue Igloo
I primed the crap out of it the other day and that seemed to help a bit...it runs great but getting fuel to pump to begin with seems to be the big problem.Stevo