The 2T reed valve has a diaphragm. The unit, indicated by an arrow in the figure, has a cut-off connected
to the depression intake on the inlet manifold that cuts the air inlet in deceleration, to avoid explosions
in the muffler.
Air is drawn through the opening «A», goes through the first filter and is channelled through the opening
«B».
Air gets to the second filter «B» through the opening shown in the figure. Now, the filtered air enters
the diaphragm device, and then is channelled to the head.
The air passes through a rigid pipe connected to the head and reaches a discharge joint in order to
supply oxygen to the unburned gases before the catalytic converter, thus favouring an improved reac-
tion of the catalytic converter.
B 125-250 Characteristics
CHAR - 11
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