I have a Signature 2000 Elite (MTD) Riding Mower came with a bagger off of craigslist I bought last fall. I have never had a problem with the bagger, but it clogs now. I was mowing with it (I do mowing in my neighborhood), and the engine sounded different, like it was on low power. Then it started smoking, so I hoped off and checked it out. The belt was burning from it clogging with grass. After cleaning it, I finished the lawn checked it, and it clogged again. Anybody know whats wrong? It has not done this before.