Leaf Blowers

Where do I find the product # so I can register my 125BVx blower I just bought. I entered 125BVx but it dosen't take it. I entered the SU part # from Lowes and it dosen't like that. This blower is starting to be a real pain in the ***. I can't even register it. Now it won;t even stay running. It will start and run for about a minute then it revs up and dies. Can I take it to an authorized deler and have them tune it properly at no cost to me. Iv'e only used it once, and bought it a week ago.