副油针 meaning in Chinese

idle mixture

If the mixture is to rich , the rpm ' s will start to slow down 2 , 000 1 , 900 , 1 , 800 , 1 , 700 . lean the low end
富油：引擎转速会慢慢下降而熄火请逆时针转副油针。
If the mixture is to lean , the rpm ' s will start to speed up 2 , 000 , 2 , 100 , 2 , 200 , 2 , 300 . richen up the low end
稀油：引擎转速会慢慢上升后熄火请顺时针转副油针。
If the engine sounds ok and is not labouring gently open the throttle fully and adjust as detailed below
如果运转声音听起来很顺的话，慢慢将节流阀全开进行磨车跟调整主副油针。