Briggs wrote:
I took my propane cooktop apart to clean it, and now one of the burners
operates erratically. Sometimes it works fine, sometimes it lights late
with a big whoosh, and burns with a big yellow flame, and sometimes it
won't light at all. I'm pretty sure it's seated ok (there is a locating
pin). I would replace the burner, but all the sources I've checked have
either never heard of the model, or say that the burner is no longer made.
The cooktop is a Modern Maid KGT-583, which isn't listed on many
websites. The burner is about 8" long with a staight tube. Repair
Clinic says the part number is 0042354, but it's discontinued. Any
suggestions?

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If the flames are yellow, this usually indicates insufficient air. Check
the tube at the valve end for proper adjustment. It usually rotates or
slides to adjust the air. As far as lighting erratically, there are
usually a series of small holes leading from the pilot/igniter area to
the main burner. These can become plugged. Check the other burners for
an example. If plugged, clean out with a small pin being careful not to
enlargen the holes.