I've got another question. I was mowing a yard today with a HUGE backyard with the little mower, and it died out on me and I could see thin white smoke coming off of the engine. I ran to my garage and got my toolbox and ran back to the mower. The smoke was coming from the carburetor area. I took the air filter off and I looked all around for damage of some sort. I couldn't find anything wrong. The tank was full, oil level was good, and it ran fine before this little happening. Any ideas what it could be?