In my case it does not it will actually drain the tank withing a few days through the carb.
Weed eater gas tank pressure.
If a stihl trimmer gas tank is compromised in some way the machine won t work at full capacity.
The fuel in your weed eater must flow uninterrupted from the tank to the carburetor from the carburetor to the cylinder and all excess fuel must return to the tank.
I believe that the tank builds up pressure during running and i think that the fuel cap should relieve it back to atmosphere after it has been shut off.
Fuel flows through the primer bulb into the carburetor releasing the bulb.
The plastic gas tank in a stihl weed eater as with other weed eater gas tanks holds the machine s fuel supply.
In this video i am pressure testing a strimmer petrol tank and checking the petrol lines.
Quick question regarding an xt200 weedeater fuel tank.
Gasping for air priming begins with air pressure caused by pushing air out of the primer bulb into the fuel tank.
This cycle needs to remain completely airtight otherwise fuel will start leaking from either the broken seal or from another area in the fuel system.