 400cc & 450cc
Four-Stroke HP Comparison - Graph showing horsepower
ratings for Gas Gas EC 450, Honda XR400R, Kawasaki KLX400 / Suzuki
DRZ400, KTM 400 EXC, and Yamaha WR450F. |
|
 Yamaha
Factory Motocross Team to Celebrate 50th Anniversary at Unadilla -
In celebration of its 50th anniversary, the Yamaha Factory
Motocross Team's stable of YZ450Fs will feature the yellow
and black retro colors. By Yamaha Motor Corp. |
|
| New for 2006: WR250F
| WR450F
| YZ250F
| YZ450F |
|
 The
All New 2005 Yamaha TT-R230 - The all-new 2005 Yamaha
TT-R230 is the perfect bike for mom or dad, either for riding
with the kids on their own Yamaha PWs or TT-Rs, or for getting
around the camp area. |
|
| New for 2005: WR250F | WR450F | YZ250F | YZ450F |
|
| New for 2004: WR250F | WR450F | YZ250F | YZ450F |
|
  2003
YZ450F vs 2003 WR450F - Rear wheel size, weight,
engine starting, suspension, valve timing, fuel tank, drive
chain, transmission gear ratio, price, and rear wheel adjuster. |
|
| New for 2003: WR250F
| WR450F
| YZ250F
| YZ450F |
|
| New for 2002: WR250F
| WR426F
| YZ250F
| YZ426F |
|
| Yamaha unveiled the YZ250F and WR250F in 2001. |
|
| Yamaha unveiled the YZ400F in 1997. |
|
Links to Yamaha Four-Stroke Related Articles on the Internet |
