Ms280 won't stay ruining

[GTSIO520]

I've got an ms280 that won't stay running it runs for a second sometimes sometimes it runs for a minute I've cleaned the carb and replaced the fuel line the piston looks like new from the intake side any ideas?

 

[StihlNick]

Check that the choke is opening. Tune carb to manufacturers specs. Check spark plug or fouling.

 

[alexcagle]

Did you change the fuel filter?
Why did you change the fuel hose, was it leaking?
There is a screen inside the carburetor that could have gotten plugged if it had a leak inside the tank.
Check your impulse hose and intake boot for leaks/cracks/splits.

 

[Andyshine77]

Did you replace the carb diaphragms?

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[GTSIO520]

Haven't replaced the diaphragm in the carb yet just checked the impulse line and the intake boot there fine sparkplug was cleaned and gaped proper in going to order a diaphragm for it this week already bought a new saw so don't want to put to much time or money in to it

 

[a. palmer jr.]

A 280 is worth putting a bit of money in. Should sell in the neighborhood of $200 plus.