Old Crow
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Hi, Tim...
The yellow flame indicates an improper gas/air mixture. It's burning way too rich (i.e., not getting enough air).
The rectangular orifices we see in the metal tubes in your photos are the air intakes. You could look there for an obvious obstruction (like a spider nest) and perhaps clear it with a blast of air but it's probably better to just pull the assembly so you can check the tube and clean it thoroughly.
The cleaning is an easy process in concept but of course it's always possible to run into a rusted screw or something that makes it harder than it should be.
Here's The Willful Wanderer's very nice video of the process on a different-brand stove....
And here's one showing the process on a newer Atwood....
.
The yellow flame indicates an improper gas/air mixture. It's burning way too rich (i.e., not getting enough air).
The rectangular orifices we see in the metal tubes in your photos are the air intakes. You could look there for an obvious obstruction (like a spider nest) and perhaps clear it with a blast of air but it's probably better to just pull the assembly so you can check the tube and clean it thoroughly.
The cleaning is an easy process in concept but of course it's always possible to run into a rusted screw or something that makes it harder than it should be.
Here's The Willful Wanderer's very nice video of the process on a different-brand stove....
And here's one showing the process on a newer Atwood....
.