大部分踏板车及大排量多缸车都使用负压开关,可有人认为即使它损坏了也不要紧,化油器里还有浮子针阀可以封油,只要它不影响行驶供油就行了。如果这样那可就大错特错了。首先,负压开关最容易损坏的部分就是膜片,有的膜片可以更换,有 Most of the scooters and large-displacement multi-cylinder vehicles use negative pressure switches. Some people think that even if it is damaged, it does not matter. There is also a float needle valve in the carburetor that can seal the oil as long as it does not affect the fuel supply. If so, it would be wrong. First of all, the most vulnerable part of the negative pressure switch is the diaphragm, some of the diaphragm can be replaced, there