2T老機車，為何排煙會越來越多？
我發現主要原因大都是機油幫浦內的O型環，時間久了間細過大
機油會直接內漏到曲軸箱內，所以機油量會太多造成排煙過多的問題，今天白同學要來把這個二行程老車通病一次把它決解，
一起上課去囉．GO．．．
2T old locomotive, why smoke more and more?
I found that the main reason is mostly the O-ring in the oil pump, which has been for a long time
Oil will be directly leaked into the crankcase, so the amount of oil will cause too much smoke problem, today's white classmate to come to this two-stroke old car common sense to solve it once,
Go to class together．．．GO．．．