The TF-1A-6D is a drop-in replacement for Our TPP-4500G-A gasoline generator with remote start. TF-1A-6D uses our new TillotsonTCT fuel system technology to provide a substantial upgrade in performance, including quieter tone, better fuel economy for longer run time, lower emissions, and more stable power compare to the standard carburetor. Upgrading the carburetor can be done in 30 minutes with a few common hand tools.