After taking out the pin, does I pull up to get it out of grill. Any other hidden screws? Mine won’t come off. Maybe too rusted?

After removing the pin, lift the back end of the burner up about an inch, then pull the burner towards the back of the grill to remove it. It does rest over the valve on the front of the grill, so you need to pull it off that to remove it from the grill. If you can't lift it off the bracket at all, it may be rusted to the bracket itself. Try soaking it in some WD40.