[VWNate1]

Be smart and remove the fuel tank, it's prolly got crud and debris in it ~ the fuel feed is on the bottom via a tiny little shut off valve ~ most of the old farm trucks I worked on in the 1970's had little bits of straw and grass standing up from the mouth of this valve .

The tank is almost certain to have some rust in it, dead easy and CHEAP to clean using Phosphoric Acid and water....

Mix the acid & water OUTSIDE the tank and pour it in, dump in a handfull of old nuts & small flat washers, cover the holes and shake the beejeebers out of it ~ your arms will get sore, stop awhile and SHAKE IT SOME MORE .

Drain the cloudy and debris filled liquid out via a large funnel lined with scrap felt or an old cloth chambray work shirt then you can use the same liquid to go back in and clean it some more .

Takes a little time but no one will do as good a job as you do ~ take it from a professional .

Whatever you do, DO NOT GET SUCKERED INTO USING MURIATIC ACID ! it eats metal not just rust, Phosphoric Acid cannot damage good steel .

? Have you yet done a siphon test ? .