Larry P Naperville , IL April 24, 2015 Appliance: Maytag Self Cleaning Free Standing Gas Range MGR5745ADA Maytag Range Mgr5745ada: When we would use the right front burner we would smell natural gas so for the longest time we wouldn't use that burner. How to replace Orifice Tube Assembly. I was able to find where the burner was leaking, and after ordering the correct replacement part, the range is a s good as new. Thanks for your extensive parts inventory. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes