Documents BR400 UD. How to power up Modifying Parts: 3.Exhaust Muffler 1.Intake manifold 2. Carburetor.

BR400 UD How to power up Modifying Parts: 1.Intake manifold 2.Carburetor 3.Exhaust Muffler How to power up 1.Intake manifold ● Cut off the pipe A. ● Remove the seat and…