My fuel gauge has never worked right but now it is toast. I had to pull the tank to put in a new fuel pick-up, so I figured fix it too. Cleaned and adjusted the sending unit so it has good contact and reads from 100 to about 800 ohms but the gauge stays at empty. The needle is very stiff to move by hand and moves slowly past empty if I move it to 1/2 tank and then turn on the power. Would giving it a bit of WD40 make the needle move better ? All the other gauges work fine as do the dash lights.
Any suggestions ?