M2500 (41ADZ01C758,) MTD Trimmer - Overview

Removed 2 screws securing the air cleaner and carburetor to the engine using a T25 Torx driver. then removed the throttle cable from the carb.Then removed the o ring gasket from the engine and replaced with a new one and replaced the carb etc. Primed it and fired it up.Runs just like new.

Removed the two screws holding the fuel tank to the main unit. Removed the two fuel lines and any stuck on rubber. Installed and installed two screws to mount the new tank. Slid fuel lines on their respective connectors. Done.

The replacement of the carburetor, O-ring, and gasket was simple. I removed 2 screws that held the air cleaner and carburetor in place, swapped them out, and replaced the screws. What took longest was finding a piece of fuel line after breaking one of them. It was brittle after hanging in my garage for several years. I found some in my garage and replaced it. It took a few pulls to get it started, but ran very smooth.

Additional information: rather than mixing my fuel, I purchased 40:1 pre-mix fuel to prevent gunking up the carburetor in the future. I use it in my other trimmer and have not had any issues.