The scheme of the device for supplying exhaust gases to the throttle valve of the carburetor
At this alteration of the carburetor, which at the minimum locksmith skills is available to the motorist, ends. A minimal alteration of the intake manifold 7 is also necessary. In its flange 8, in the zone of the branch pipes through which the exhaust gases from the 2nd and 3rd cylinders are removed, it is necessary to drill a through hole and cut the M8x1 thread. Additional parts will also be required: a copper tube 9 and two unions 10 and 11. A coupling 10. It is necessary to screw into the body of the carburetor, and the fitting 11 - into the flange of the exhaust manifold. The copper tube should be 8x6 mm in diameter with two union nuts. The design of the ends of the tube together with the union nuts should ensure the tightness of the connection between the tube and the fittings.
After connecting the tube to the connections on the carburetor and the exhaust manifold, you can start the engine. Part of the exhaust gases from the 2nd and 3rd cylinders will go under the throttle and begin to fulfill their noble task: not only save fuel by 25%, but also reduce the toxicity of the exhaust by half.
Literature: "IR" magazine No. 11/91

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