diff --git a/Cantera/src/kinetics/GasKinetics.cpp b/Cantera/src/kinetics/GasKinetics.cpp
index 9aeff996e..c73145991 100644
--- a/Cantera/src/kinetics/GasKinetics.cpp
+++ b/Cantera/src/kinetics/GasKinetics.cpp
@@ -29,6 +29,52 @@ using namespace std;
 
 namespace Cantera {
 
+  //====================================================================================================================
+  GasKineticsData::GasKineticsData() :
+    m_logp_ref(0.0),
+    m_logc_ref(0.0),
+    m_logStandConc(0.0),
+    m_ROP_ok(false),
+    m_temp(0.0)
+  {
+  }
+  //====================================================================================================================
+  GasKineticsData::GasKineticsData(const GasKineticsData &right) :
+    m_logp_ref(0.0),
+    m_logc_ref(0.0),
+    m_logStandConc(0.0),
+    m_ROP_ok(false),
+    m_temp(0.0)
+  {
+    *this = right;
+  }
+  //====================================================================================================================
+  GasKineticsData::~GasKineticsData()
+  {
+  }
+  //====================================================================================================================
+  GasKineticsData&  GasKineticsData::operator=(const GasKineticsData &right)
+  {
+   if (this == &right) return *this;
+
+   m_logp_ref = right.m_logp_ref;
+   m_logc_ref  = right.m_logc_ref;
+   m_logStandConc = right.m_logStandConc;
+   m_ropf = right.m_ropf;
+   m_ropr = right.m_ropr;
+   m_ropnet = right.m_ropnet;
+   m_rfn_low = right.m_rfn_low;
+   m_rfn_high = right.m_rfn_high;
+   m_ROP_ok  = right.m_ROP_ok;
+   m_temp = right.m_temp;
+   m_rfn  = right.m_rfn;
+   falloff_work = right.falloff_work;
+   concm_3b_values = right.concm_3b_values;
+   concm_falloff_values = right.concm_falloff_values;
+   m_rkcn = right.m_rkcn;
+    
+   return *this;
+  }
   //====================================================================================================================
   /*
    * Construct an empty reaction mechanism.
@@ -43,9 +89,9 @@ namespace Cantera {
     m_finalized(false)
   {
     if (thermo != 0) addPhase(*thermo);
-    m_kdata = new GasKineticsData;
+    m_kdata = new GasKineticsData();
     m_kdata->m_temp = 0.0;
-    m_rxnstoich = new ReactionStoichMgr;
+    m_rxnstoich = new ReactionStoichMgr();
   }
 
   //====================================================================================================================
@@ -83,7 +129,10 @@ namespace Cantera {
     m_3b_concm = right.m_3b_concm;
     m_falloff_concm = right.m_falloff_concm;
     m_irrev = right.m_irrev;
-    m_rxnstoich = right.m_rxnstoich;
+
+    // needs updating
+    m_rxnstoich = (right.m_rxnstoich);
+
     m_fwdOrder = right.m_fwdOrder;
     m_nirrev = right.m_nirrev;
     m_nrev = right.m_nrev;
@@ -95,7 +144,9 @@ namespace Cantera {
     m_dn = right.m_dn;
     m_revindex = right.m_revindex;
     m_rxneqn = right.m_rxneqn;
-    m_kdata = right.m_kdata;
+
+    *m_kdata = *(right.m_kdata);
+
     m_conc = right.m_conc; 
     m_grt = right.m_grt;
     m_finalized = right.m_finalized;
diff --git a/Cantera/src/kinetics/GasKinetics.h b/Cantera/src/kinetics/GasKinetics.h
index f221a76ab..84fc551af 100644
--- a/Cantera/src/kinetics/GasKinetics.h
+++ b/Cantera/src/kinetics/GasKinetics.h
@@ -46,22 +46,27 @@ namespace Cantera {
    */
   class GasKineticsData {
   public:
-    GasKineticsData() :
-      m_logp_ref(0.0),
-      m_logc_ref(0.0),
-      m_logStandConc(0.0),
-      m_ROP_ok(false),
-      m_temp(0.0)
-    {}
-    virtual ~GasKineticsData(){}
 
-    doublereal m_logp_ref, m_logc_ref, m_logStandConc;
-    array_fp m_ropf, m_ropr, m_ropnet;
-    array_fp m_rfn_low, m_rfn_high;
+    GasKineticsData();
+
+    GasKineticsData(const GasKineticsData &right);
+
+    virtual ~GasKineticsData();
+    
+    GasKineticsData& operator=(const GasKineticsData &right);
+
+    doublereal m_logp_ref;
+    doublereal m_logc_ref;
+    doublereal m_logStandConc;
+    array_fp m_ropf;
+    array_fp m_ropr;
+    array_fp m_ropnet;
+    array_fp m_rfn_low;
+    array_fp m_rfn_high;
     bool m_ROP_ok;
 
     doublereal m_temp;
-    array_fp  m_rfn;
+    array_fp m_rfn;
     array_fp falloff_work;
     array_fp concm_3b_values;
     array_fp concm_falloff_values;