Got out the old trimmer last Thursday to do a final trim before the winter. When I pulled on the starter cord I nearly dislocated my shoulder, gas was pouring out of the air filter and the exhaust!! NOT GOOD! Quick research showed that I likely needed to rebuild the carburetor. So I took it apart to clear out all the fuel and jumped on the interweb to order a carb kit. Low and behold a carb kit was $11 and a whole new carb was $17, I think you know which direction I went. Two days later the carb, spark plug, air filter, fuel lines and filter arrived and it took all of about 10 minutes to throw it back together. I filled her up with fresh fuel pumped the bulb a few times and gave her a pull. Started on the second pull, and runs like new!