Honda ruckus 50 is not getting fuel?

My friend has a Honda ruckus, he called me because I'm supposed to be the mechanical genius but I have no idea what this, The fuel line from the fuel pump to the carburetor works, The fuel pump clicks but is not sucking any fuel, there is fuel in the fuel filter… But the pump still won't work. It is getting power and making a clicking sound but it is not doing ****. What can I do to fix this without getting a new pump,… All answers are appreciated. Thanks

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