Where to get my weed wacker repaired

It’s new and only been used like 4 times. I got it at lowes it’s a 4 cycle troybuilt weed eater wacker trimmer what ever you call it. It’s been over 5 months and I didn’t get warranty. I don’t wanna pay over $80 since it only cost about $200. It kinda starts, and smokes a lot. Won’t stay running. Thanks. Also I live in north Houston near IAH