ms260 carburetor help

[eagleeye03]

Saw will start with gas sprayed into carb but not on its own. Thinking carb kit, impulse line and new fuel line. What carburetor is this and what carb kit do I need? Cant blow air through impulse tube on carb when it is put together. Saw has not been used much but I know nothing about its history. Cleaned up well

 

[pioneerguy600]

Walbro, the number will be stamped on the side of the carb body.

 

[slimbo3006]

 

[Vintage Engine Repairs]

Grab a cup of tea and have a look at this video.