A few nice weber gas grills images I found:
The New Manifold

Image by Another Pint Please...
For about two months, I have had problems lighting number 4 burner. It would spark and flow gas, but for some reason not light off of the spark. After several cleanings and no luck, I contacted Weber customer service. In their typical fashion they helped me out and shipped a new manifold. After fifteen minutes of work I had her up and running again...no problems.
Removing the old manifold

Image by Another Pint Please...
For about two months, I have had problems lighting number 4 burner. It would spark and flow gas, but for some reason not light off of the spark. After several cleanings and no luck, I contacted Weber customer service. In their typical fashion they helped me out and shipped a new manifold. After fifteen minutes of work I had her up and running again...no problems.
Sliding the old manifold out

Image by Another Pint Please...
For about two months, I have had problems lighting number 4 burner. It would spark and flow gas, but for some reason not light off of the spark. After several cleanings and no luck, I contacted Weber customer service. In their typical fashion they helped me out and shipped a new manifold. After fifteen minutes of work I had her up and running again...no problems.