I bought a new husqvarna hu725xe awd 3 days ago. I followed the instructiins, put in the fluids, setup the side mulcher, etc. Ive tried for two days to get it to start and it still wont. The sales guy at lowes said to keep yanking on the chord until it starts. The best I could do was a half second sputter after around 25 yanks. Please advise.