How to install gas grill cast burner - Kenmore Elite 141.17691 Gas Grill Cast Iron Burner

First, check to see that there isn't a blockage somewhere. Spiders and bugs love to crawl into tubes.

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I would say that the thermocouple or thermostat has failed or the thermocouple may not be in the correct position. The thermocouple is the metal wire with a bulb on the end which usually sits in the cooing area, clipped to the sides or back.. This senses the heat and turns down or turns off the gas, to maintain which temperature you have selected.

unscrew it from the hose

You should find an air mix adjustment for that burner. Try opening it a little, to allow more air. A yellow flame indicates too rich a mix.

The adjustment is probably behind the knob for that burner.

Clock logic can not be changed replace the whole board
just lets you change the time will not let you slow it or speed up

No,it will not.

Hello Frank - Since a gas range is such a complex unit and for safety and liability reasons the unit is not designed to be lift open. However you may clean the burner grates, burner caps, and the surface burner heads.