Suzuki Kubiao 150 motorcycle dual-start single throttle pipeline can replace the dual throttle pipeline carburetor, but it is not necessary. The carburetor with double throttle lines retreats one by one, which makes the throttle return more flexible, but there is not much difference in actual use. As long as it is not caused by rust inside the throttle pipe, it is generally enough to rely on the carburetor return spring. If there is a blockage in the line, even the double-line effect is not good.