diff --git a/interfaces/cython/cantera/examples/onedim/adiabatic_flame.py b/interfaces/cython/cantera/examples/onedim/adiabatic_flame.py
index 2662f4a54..317cedb00 100644
--- a/interfaces/cython/cantera/examples/onedim/adiabatic_flame.py
+++ b/interfaces/cython/cantera/examples/onedim/adiabatic_flame.py
@@ -17,7 +17,8 @@ tol_ts = [1.0e-4, 1.0e-13]  # [rtol atol] for time stepping
 loglevel = 1  # amount of diagnostic output (0 to 8)
 refine_grid = True  # 'True' to enable refinement, 'False' to disable
 
-# IdealGasMix object used to compute mixture properties
+# IdealGasMix object used to compute mixture properties, set to the state of the
+# upstream fuel-air mixture
 gas = ct.Solution('h2o2.xml')
 gas.TPX = Tin, p, reactants
 
@@ -26,10 +27,6 @@ f = ct.FreeFlame(gas, initial_grid)
 f.flame.set_steady_tolerances(default=tol_ss)
 f.flame.set_transient_tolerances(default=tol_ts)
 
-# Set properties of the upstream fuel-air mixture
-f.inlet.T = Tin
-f.inlet.X = reactants
-
 f.show_solution()
 
 # Solve with the energy equation disabled
diff --git a/interfaces/cython/cantera/examples/onedim/burner_flame.py b/interfaces/cython/cantera/examples/onedim/burner_flame.py
index 6b3eb2c26..3a23fe440 100644
--- a/interfaces/cython/cantera/examples/onedim/burner_flame.py
+++ b/interfaces/cython/cantera/examples/onedim/burner_flame.py
@@ -20,9 +20,6 @@ gas = ct.Solution('h2o2.xml')
 gas.TPX = tburner, p, reactants
 
 f = ct.BurnerFlame(gas, initial_grid)
-
-f.burner.T = tburner
-f.burner.X = reactants
 f.burner.mdot = mdot
 
 f.set_initial_guess()
diff --git a/interfaces/cython/cantera/examples/onedim/flame_fixed_T.py b/interfaces/cython/cantera/examples/onedim/flame_fixed_T.py
index 9588473c9..a9a303cb2 100644
--- a/interfaces/cython/cantera/examples/onedim/flame_fixed_T.py
+++ b/interfaces/cython/cantera/examples/onedim/flame_fixed_T.py
@@ -72,10 +72,8 @@ gas.TPX = tburner, p, comp
 # create the BurnerFlame object.
 f = ct.BurnerFlame(gas=gas, grid=initial_grid)
 
-# set the properties at the burner
+# set the mass flow rate at the burner
 f.burner.mdot = mdot
-f.burner.X = comp
-f.burner.T = tburner
 
 # read in the fixed temperature profile
 [zloc, tvalues] = getTempData('tdata.dat')
diff --git a/interfaces/cython/cantera/examples/onedim/flamespeed_sensitivity.py b/interfaces/cython/cantera/examples/onedim/flamespeed_sensitivity.py
index ae222760d..b3e2caf89 100644
--- a/interfaces/cython/cantera/examples/onedim/flamespeed_sensitivity.py
+++ b/interfaces/cython/cantera/examples/onedim/flamespeed_sensitivity.py
@@ -27,10 +27,6 @@ f = ct.FreeFlame(gas, initial_grid)
 f.flame.set_steady_tolerances(default=tol_ss)
 f.flame.set_transient_tolerances(default=tol_ts)
 
-# Set properties of the upstream fuel-air mixture
-f.inlet.T = Tin
-f.inlet.X = reactants
-
 # Solve with the energy equation disabled
 f.energy_enabled = False
 f.set_max_jac_age(10, 10)
diff --git a/interfaces/cython/cantera/examples/onedim/premixed_counterflow_flame.py b/interfaces/cython/cantera/examples/onedim/premixed_counterflow_flame.py
index a6e6d1178..d01087662 100644
--- a/interfaces/cython/cantera/examples/onedim/premixed_counterflow_flame.py
+++ b/interfaces/cython/cantera/examples/onedim/premixed_counterflow_flame.py
@@ -37,11 +37,8 @@ gas.TPX = T_in, p, comp
 # Create the flame simulation object
 sim = ct.CounterflowPremixedFlame(gas=gas, grid=initial_grid)
 
-# set the properties at the inlet
+# set the boundary flow rates
 sim.reactants.mdot = mdot_reactants
-sim.reactants.X = comp
-sim.reactants.T = T_in
-
 sim.products.mdot = mdot_products
 
 sim.flame.set_steady_tolerances(default=tol_ss)
diff --git a/interfaces/cython/cantera/examples/onedim/stagnation_flame.py b/interfaces/cython/cantera/examples/onedim/stagnation_flame.py
index e84f766b4..18003378d 100644
--- a/interfaces/cython/cantera/examples/onedim/stagnation_flame.py
+++ b/interfaces/cython/cantera/examples/onedim/stagnation_flame.py
@@ -58,10 +58,8 @@ gas.TPX = tburner, p, comp
 # catalytic_combustion.py for how to do this.)
 sim = ct.ImpingingJet(gas=gas, grid=initial_grid)
 
-# set the properties at the inlet
+# set the mass flow rate at the inlet
 sim.inlet.mdot = mdot[0]
-sim.inlet.X = comp
-sim.inlet.T = tburner
 
 # set the surface state
 sim.surface.T = tsurf
diff --git a/interfaces/cython/cantera/onedim.py b/interfaces/cython/cantera/onedim.py
index 3985cfada..5da9ea2ff 100644
--- a/interfaces/cython/cantera/onedim.py
+++ b/interfaces/cython/cantera/onedim.py
@@ -375,6 +375,10 @@ class FreeFlame(FlameBase):
         super(FreeFlame, self).__init__((self.inlet, self.flame, self.outlet),
                                         gas, grid)
 
+        # Setting X needs to be deferred until linked to the flow domain
+        self.inlet.T = gas.T
+        self.inlet.X = gas.X
+
     def set_initial_guess(self):
         """
         Set the initial guess for the solution. The adiabatic flame
@@ -422,13 +426,16 @@ class BurnerFlame(FlameBase):
         ``self.outlet``.
         """
         self.burner = Inlet1D(name='burner', phase=gas)
-        self.burner.T = gas.T
         self.outlet = Outlet1D(name='outlet', phase=gas)
         self.flame = AxisymmetricStagnationFlow(gas, name='flame')
 
         super(BurnerFlame, self).__init__((self.burner, self.flame, self.outlet),
                                           gas, grid)
 
+        # Setting X needs to be deferred until linked to the flow domain
+        self.burner.T = gas.T
+        self.burner.X = gas.X
+
     def set_initial_guess(self):
         """
         Set the initial guess for the solution. The adiabatic flame
@@ -744,7 +751,6 @@ class ImpingingJet(FlameBase):
         are stored as ``self.inlet``, ``self.flame``, and ``self.surface``.
         """
         self.inlet = Inlet1D(name='inlet', phase=gas)
-        self.inlet.T = gas.T
         self.flame = AxisymmetricStagnationFlow(gas, name='flame')
 
         if surface is None:
@@ -758,6 +764,10 @@ class ImpingingJet(FlameBase):
         super(ImpingingJet, self).__init__(
                 (self.inlet, self.flame, self.surface), gas, grid)
 
+        # Setting X needs to be deferred until linked to the flow domain
+        self.inlet.T = gas.T
+        self.inlet.X = gas.X
+
     def set_initial_guess(self, products='inlet'):
         """
         Set the initial guess for the solution. If products = 'equil', then
@@ -821,6 +831,9 @@ class CounterflowPremixedFlame(FlameBase):
         super(CounterflowPremixedFlame, self).__init__(
                 (self.reactants, self.flame, self.products), gas, grid)
 
+        # Setting X needs to be deferred until linked to the flow domain
+        self.reactants.X = gas.X
+
     def set_initial_guess(self, equilibrate=True):
         """
         Set the initial guess for the solution.