ALSO - Often, you may need to let the gas run for a moment to purge the air out of the lines.
I use one of those long butane lighters.
Turn one of the stove burners on, light the butane lighter and hold the flame near the stove burner so you can see the air flow from the stove burner blowing against the flame of the lighter.
Give it about 45 seconds and it should light.
2001 Coachmen Mirada (Ford F53 6.8L V10) - Toad 2001 Civic
It won't do MACH 2, but I can get a sandwich and take a pee.