[font=comic sans ms,cursive][size=3][size=5]Hi there ive just recently baught an st170 had her for about a month, recently when ive got my foot planted high up in the revs it splutters a coughs i have to keep trying to apply the accerator untill it picks back up any help???........ Also i got caught in the snow the other week, im happily sitting there and its doing the same thing but at idel!??!! but again i had to rev it it just felt like it was going to die ?? x-o helpp please [/size][/size][/font]

sounds like the coil pack, ht leads or spark plug