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the pilot flame is orange

Customer (PF13L160): 

the pilot flame is orange, which doesn’t burn clean, is there a way to adjust the fuel/air ratio to maintain the pilot blue flame like one of your tutorial videos?


The pilot light flame should be adjust to about ½~1” long only.  In this length, it has a bit of yellow on its highest tip.  Most of the flame length should be blue.   If you set it too long, it does burner more yellow and interfere with main burner flame.   This is not desirable.