TBC-2100 Tanaka Trimmer - Overview

Also known as a priming bulb, this OEM replacement part is an individually sold rubber primer bulb. Since it is made of rubber, it will eventually lose its elasticity and crack or break,and need replacing. It is designed for use with a variety of different small engine equipment and is also known as a purge bulb. Pressing this primer bulb...Read more forces fuel through the fuel line and into the carburetor from the fuel tank. Once the carburetor is has a sufficient level of fuel, any excess fuel will be forced back into the fuel tank through the return line attached to the carburetor. If your primer bulb has a darker appearance or has lost its elasticity and does not return to its original shape, it means the rubber will likely soon crack, which will lead to fuel leaking into the engine and ignition system. To replace your primer bulb, simply remove the outside cover and primer bulb cover and replace the bulb within its housing.