I just installed a new gas cooktop to replace our old one. It is a GE
JGP336BEDBB 30 inch Glass cooktop. I got it installed and everything
seems to be working well, but I am concerned about some yellow flames.

If I turn it on without anything sitting on the burner it has periodic
yellow flickers. If I sit something on the burner like a tea kettle
it has more yellow flames. From reading the installation instructions
I should have no yellow flames at all. Did I do something wrong? Is
this normal? Does it need to be fixed?

BTW: this is Natural Gas

thanks
Mark