Okay, so I dropped the mower off at my local service center for a carb servicing. I just don't have the time to work on it myself. Should be done this week I think.
On a related subject, I am posting a video of my snowthrower that I just took out the shed this weekend since it was cold enough to run it. Its a Toro CCR 3650 (about 8 years old) and I'm wondering if it needs a carb servicing as well. I take it in for a tuneup ever 2-3 seasons (last one just before winter of 2011-2012) but it always sounds like it does in the video. I couldn't even start it with the pull cord...I had to start it via electronic ignition. Is this normal operation?