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目前,70～100mL小排量四冲程摩托车的保有量非常大,如JH70、DY90和GT100等。这类车质量轻、油耗低、噪声低和售价低,受到厂大消费者尤其是农村消费者的喜爱,但也有一些缺点。 下面,笔者根据多年的维修实践,谈谈此类车发动机的几点不足,并提出改进意见。 a)机油过滤网位置设置不妥。70～100mL四冲程摩托车的机油过滤网设置在发动机的右侧盖内,一旦堵塞,清洗时需拆去起动杆、脚踏架和右边盖等,耗工费时,非常费事,若能象125mL四冲
At present, 70 ~ 100mL small-displacement four-stroke motorcycle ownership is very large, such as JH70, DY90 and GT100 and so on. This kind of car is light in quality, low in fuel consumption, low in noise and low in price. It is favored by large consumers, especially rural consumers, but it also has some shortcomings. Next, the author based on many years of maintenance practice, talk about some of these car engine deficiencies, and put forward suggestions for improvement. a) Improper setting of the oil filter. 70 ~ 100mL four-stroke motorcycle engine oil filter set in the right side of the engine cover, once the blockage, cleaning to be removed when the start lever, pedal bracket and the right cover, etc., labor-intensive and time-consuming, if like 125mL Four red