I have this serger and I was told by a Viking/Husqvarna dealer not to use anything but Schmetz needles. Those machines where manufactured to specifically use Schmetz needles only.
The reason I was told this is because I was having problems with my serger and I bought all kinds of needles thinking that was the issue. It ended up being the timing and when there where servicing it they noticed I had the inspira needles in the machine and they left a big note saying not to use them.
Over the years in have used everything from a size 10 to a 16 both stretch and woven. I found my machine like size 14 the best though.
Last edited by kylenstevesmom; 09-20-2015 at 04:56 PM.