150cc vacuum lines

I have been looking for a diagram of the locations for the vacuum lines on a 150 cc chines motor scooter. I have one lines coming off the black air filter that came off and can't seem to locate where it goes. There is also one off the side of the fuel pump which I hooked up to the intake port. There is a hose empty connector on the bottom of the air filter and one on the upper part of the carb. Does some one know where it goes?

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