Two Stroke to Four Stroke - Back to Two Stroke
I grew up riding two strokes in the 80's and 90's. After a period of no riding I got back into the sport riding 4 strokes. Although there were some advantages, ie., running straight gas and roll on power, I eventually found my way back to a two stroke. The two stroke is much easier and more fun to work on than a four stroke. A lot easier on the wallet as well. Plus I ride much faster and conserve more energy during motos.
My 2008 KTM 250sx is much quieter than a four stroke, which in my mind outweighs the negative impacts on the environment caused by the level of pollutants from the exhaust. I plan to buy a 2011 KTM 250Sx when they become available.