I have an 04 Yamaha TTR 125L. I'm almost 16 and my dad says its almost time for a new bike. All my friends are getting YZ 125's and CR125 2 strokes, but my dad says that 2 strokes are a lot of maintenance and i should stick to a 4 stroke but get a bigger size, like a 200 or something. What do you guys think of a 2 stroke vs. a 4 stroke? I don't really race that much but i really like going on tracks, but i mostly ride trails on the woods. Thanks.