Please help me understand what went wrong and how I can fix it?
Yellow isnt hot enough.
Sometimes that’s because of grease and shit that’s burning less efficiently, and you just need to let it run and it’ll fix itself.
It doesn’t look like that though, so maybe carbon is built up?
So you can try to clean it, use a toothpick.or something to make sure there’s nothing clogged.
There’s a chance the fuel is just old, but I’d imagine you checked that first and probably even a new container, but worth mentioning in case you haven’t.
If it isn’t this and solved by putting a new tank in and letting it run for a bit, it could possibly be an air leakage (usually deforms the flame a bit as well).
Check so nothing is loose and/or damaged, and any rubber without cracks or dry spots.
Big yellow flame probably indicates its not getting enough air mixing with the fuel for complete combustion. I’m guessing something got clogged up with soot, or possibly rust. Look around at all the little holes the gas comes out of, see if any of them are clogged up. If you find some, something like a safety pin can probably get them opened up.
A proper cleaning should do it. Make sure all the air holes are clean.
