MTC先生: 您好,我有一辆灰色JH125型摩托车,已骑行了1.3万多公里,现有几个问题向您请教。 1.骑行到8千多公里左右时,一次,行驶十多公里后,热车调整正时链条张紧力。两小时后发动,感觉混合气很稀,加不上油,动力不足,需热车十多分钟,才可以勉强行驶。无奈中,将化油器油针上提一格,调整后,力量恢复,但发动机在顺畅性方面略有下降。请问造成此故障的可能原因是什么。 2.行驶了1.1万公里左右时, MTC: Hello, I have a gray JH125 motorcycle, has been riding more than 13,000 kilometers, there are several questions to your advice. 1. Ride to more than 8,000 kilometers, once, after driving more than 10 kilometers, the hot car to adjust the timing chain tension. Start two hours later, I feel very dilute mixture, plus not oil, lack of motivation, need more than 10 minutes hot car before they can barely driving. In frustration, the carburetor needle on a grid, after adjustment, the power recovery, but the engine in the smoothness of a slight decline. May I ask what is the possible cause of this failure. 2. When driving about 11,000 km,