Stihl carb question

[Ronie]

What does this part of the carb do, I saw a pic of a saw that had a velocity stack and it had a piece of foam stuffed in there?

 

[dall]

intellicarb
it connects inside air filter housing to keep dust out of the area of the carb
if using a velocity stack just put foam in there and go with it

 

[Ronie]

intellicarb
it connects inside air filter housing to keep dust out of the area of the carb
if using a velocity stack just put foam in there and go with it

Thank you

 

[Nutball]

If I'm correct, it also compensates the fuel flow depending on how dirty the air filter is, that's why it connects to the air filter unlike on many other saws.

 

[sledneck22]

Interesting. Never knew this. I guess I had always assumed it was some kind of air compensator for full throttle.

 

[cus_deluxe]

nope, just stihls compensation for their crappy air filtration