hello,

I have a Solo pony backpack mister that i have had for some eight years or so, it has always ran well and started somewhat smoothly but this year it will only run for about ten minutes and then it chokes down...The original gas tank is long gone but I have replaced it so no fuel cut off valve remains...also I have fresh gas, a new plug, cleaned the carb ( had to cut a new float bowl gasket) and had to rewind the starter because the rope broke...it seems strong until it warms up but then it gradually just gets weaker. I was able to finish blowing some grass clippings on idle but this isn't right...any thoughts or ideas would be so appreciated.

Thanks