if I had a choice.... 2011 YZ250 (non-F model)
Carb because less hassles. If you put on a pipe you will need to re map the computer. Any motor mods will require that also. If you leave it bone stock then go for the fuel injection. The only other down side is the cost of fuel injection parts.
I would go with the YZ. Yes that is what I ride. I have had Yamaha four stroke séance 03 when the 450 came out. Like John said, if you keep your bike for years. My 03 kept till 06 06 until 08. 450 and 250 I had. They never been apart for valves issue. They never had to be re shim. Yes the Suzuki is one of the best turning bike out their. Yes the Suzuki clutch basket makes noise the day you buy them. That just how they are. Go Yamaha.Given the choice between the 2011 YZ 250f (naturally aspirated) or a 2012 Suzuki RMZ 250 (fuel injection) which would you choose, and why?
The Yamaha without a doubt. If your going to keep it more than a year or so, the Yamaha will stay tight and good. Suzukis start to rattle and feel worn out after a year or two.
Same with elevation changes and temperature changes...am I off base thinking that way?