I have a McCulloch MS1636NAV chain saw. The engine starts with the choke pulled out. When I push the choke in the saw dies. I've changed the spark plug, replaced the air filter. changed the gas, 40:1
Garden - McCulloch - 16 Inch Gas Chain Saw MCC1635AK
Its either sucking air in throgh a loose connection in the fuel line or the carb is stopped up. Take it apart very easy so you don't rip any gaskets, and clean evertthing with a can of compressed air blow all the tubes out real good. You may have to get a carb kit it that does not work.
But that sounds like what it is, running out of gas when you let more air to it.
Answers & Comments
Its either sucking air in throgh a loose connection in the fuel line or the carb is stopped up. Take it apart very easy so you don't rip any gaskets, and clean evertthing with a can of compressed air blow all the tubes out real good. You may have to get a carb kit it that does not work.
But that sounds like what it is, running out of gas when you let more air to it.