1994年我购买了一辆双马TN311L型助力车,骑行一年多来,麻烦较多的是化油器出故障。故障表现为加油门时减速或熄火。原因之一是助力车本身特点造成的,因排气量小(29mL),化油器主量孔小,很容易造成堵塞;原因之二是化油器制造质量问题。构成主量孔的铜螺丝其螺纹加工精度低,行驶震 In 1994 I bought a double TN311L moped, riding more than a year, more trouble is the carburetor failure. Fault performance for the throttle deceleration or flameout. One of the reasons is due to the characteristics of the moped itself. Due to the small amount of exhaust gas (29mL), the main orifice of the carburetor is small and can easily cause blockage. The second reason is the quality of the carburetor. Copper thread forming the main hole of the thread machining accuracy is low, driving shock