請(qǐng)問(wèn)點(diǎn)火線(xiàn)多長(zhǎng)時(shí)間更換一次?
規(guī)定的時(shí)間是多少? 詳細(xì)>>
請(qǐng)教個(gè)問(wèn)題,點(diǎn)火時(shí)間長(zhǎng)
最近打火時(shí)間比之前長(zhǎng)了,之前一打就點(diǎn)火,現(xiàn)在起碼有三,四秒,感覺(jué)像打不著火一樣,這是怎幺回事長(zhǎng)是火花塞問(wèn)題嗎長(zhǎng)還不到兩萬(wàn)公里長(zhǎng) 詳細(xì)>>