I watched my handyman unscrew the right orifice from the burner. He told me to buy the parts. I canvassed prices and found out that AppliancePartsPros.com prices were the lowest, even lower than G.E. direct. Before the parts came, I looked at the left side and at the connections to the knobs.
When the parts came (within 6 days from ordering), I decided to do the repairs myself. I unscrewed the left orifice and tried connecting the new parts. I found out that it was easier to screw the ends connected to the knobs first. After I connected both orifice holders, I lit both front burners, and they lit instantly like before!