I purchaced and had pro installed EBR race ecm .What an inprovment . Only one issue,Upon start up bike starts right up idles nice and smmoth for about a minute then gets choppy and stalls .I then re start give afew revs and runns choppy till warm . when bike is warmed up this all goes away and does not happen. Any thoughts? OH bike is (2007 XB 12s K&N open airBox ,Jardine slip on)