Bought a Stihl a couple of weeks ago, they own 50% of the market here. Also bought a few liters of synthetic fuel (MotoMix), doesn't gum-up and I can live with the extra cost since I don't use it all that often.
I bought some Stihl safety pants too, pretty comfy.

Used my Husky yesterday. It seems to fire up every time. I always dump the gas left in the tank out and run it until it dies. I also put Stabil in the gas if I keep it for a while. Seems to work for me. It fires up cold, warm, or hot.

My stihl dealer told me to run regular oil, then switch to synthetic after braking it in

i thought two stroke break in instantaneously? i dunno.

my two stroke friends build their motors up, and take them to the track right away..for serious flogging.

I used to break in my 2-stroke race motors. One session of 10 laps and let cool down.

They used to have the greatest calendars......

I find that 2 strokes eat up spark plugs, don't know why, but fresh plugs help a lot in starting.

Too much oil in the mix.

Not wanting to hijack this thread but I have a McCullough (from the 70's) that is a sweet little saw that will ran like crazy until one of the two jets vibrated out and was lost. Replaced it and it happened again never tobe seen again. Back to the saw shop and was told by an unmotivated employee they had no more jets because the company was long gone. I'm guessing there are many jets that would work in this situation, hate to throw away a perfectly good saw. Solutions?

aren't you thinking of rigid?

I own both a Stihl and a Husky. I can't say which is better but, I'm happy with both. A problem I've noticed is if you leave the saw set in the hot sun, they get a vapor lock and become difficult to start.

BTW, a good electric chain saw has a lot of torch, while a 2 cycle gas saw relies on speed. Sometimes an electric is more practicle.

You probably need a carburetor.

Buy a Makita gas chainsaw. They are Sachs Dolmars rebranded. On ebay they go for cheap and they are German made. My Makita is unstoppable.

Might be the anti vacuum valve for the gas tank. had one fail on my wifes stihl. (yes she has her own saw, mini boss) Would start and run, but if you shut it down and let it sit for a few minutes it would not start. dealer replaced the $3 valve and it runs great.

Rigid, Stihl, and Pirelli all have fine calendars!

Best,
Tom