Hello, I recently got a 2005 TFR and it has been great so far, except that often times the chain will come off, and while putting it back on I have noticed that the small sprocket that is held with a spring mechanism is plastic and very poor quality, do any TFR owners have a similar problem or have observed this poor quality part and know how to work around it? Another thing that really gets me is the supremely bad plastic guards that cover the engine, one already cracked, and both attached by seemingly poor mechanisms. But on the up side it does start and run everytime with little trouble, even in the cold, and it is breaking in nicely with 200 miles so far. It is also the only moped I have seen in the small city of Norman Oklahoma, most of the people like it, but some rednecks around here hate it. Oh well.