KitchenAid 1900645 Installation Instructions And Use & Care Manual page 27

Change The Rotisserie Burner Orifice
1. Use a screwdriver to remove the two screws from the
rotisserie burner heat shield. Remove the heat shield.
2. Remove the six screws on the rotisserie burner rear cover.
3. Remove the rotisserie burner rear cover.
4. Remove the two screws on the igniter bracket and
remove the bracket.
5. Use an adjustable wrench to remove the brass elbow.
6. Use a 6 mm socket wrench or 6 mm nut driver to remove
the orifice. Replace with the corresponding natural gas
orifice.
IMPORTANT: Check that the NG orifice is properly
installed inside the valve.
7. Reinstall the rotisserie burner brass elbow by using a
wrench.
8. Reinstall the igniter bracket and tighten the screws.
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