Stihl 290 problem

[ketch]

Have a Stihl 290 with about 10 hours use. On full choke saw will start ok but stops almost instantly. Restarting off full choke, it will start and run for about 2 seconds. Revs to full speed and dies. If I go back to full choke, I can repeat this cycle.
If I carefull set the choke just cracked open a wee bit the saw will run (race) but as soon as you touch the control it quits. Saw will restart ok but will only repeat the described situation!
I have:
1.Replaced the full filter with new. No change.
2.Carefully cleaned the airfilter. No change.
3.Checked the muffler screen. Looks like new.

I'm stumped! Any help much appreciated.

 

[begleytree]

take that saw back to the dealer. they are a dependable saw and run much better than you describe.
-Ralph

 

[Woodsrover]

Fuel supply problem. Take it back to the dealer if it's still under warranty. If it's not, sell it to me. I like my 290.

jim

 

[Cut4fun]

John made a video on the technique of getting the slower saws to cut faster in the cut, should really help out the 290's.
http://www.youtube.com/watch?v=b1zsV8IWERU

 

[Lakeside53]

It's most likely an impulse or fuel line issue, but can also be carb. I had an MS290 carb last week that would not rebuild, no matter what I did... First non-fixable HD carb ever past my bench. I suspect the L check vave was stuck, and that cannot be replaced.