redmomat

where would the vacuum line for the fuel pump run to

I have a 1994 Suzuki quad runner 250 4x4 the problems im having is that when I start it it idles really high or really low but when I shift into gear it idles fine and then when im driving if it has below half a tank it has the tendancy to die and then I have to blow into the breather tube of the gas cap then it will start up do u have any suggestions