1. One is in front of the throttle valve and can be discharged from the bifurcated water pipe behind the cooling fan.
2. There is a black nut on the pipe of the warm air tank entering and leaving the cockpit, or there is a metal gong wire on the car body under the hood.
3. Few people know about these two vents, and they are also very important exhaust places. If you empty it from this position, it will be complete.