Gauge was still showing just a little and was just, just almost done. Backing up and began to run bad, missing and smoking. I assume it got a big gulp of air when the fuel sloshed. Filled up over half and started ok, then went back to smoking, missing and dies. Manual says to pump the pump until resistance is felt. Don't I need to open something up before I pump and pump until clear fuel and no bubbles? Thanks LB