only mod you need? naaahhh
yep, it's like getting a new bike all over again!
so, to date, the wr250f crowd has in it's bag-o-tricks...
a) remove airbox cover and snorkel
b) trim throttle stop to the yzf spec
c) uncork exhaust (and get a Vortip for when you need stealth)
d) change to yz timing
e) cut the now-famous-you-will-read-about-it-next-month-in-dirt-bike-mag grey wire.
f) due to all of the above, and especially if you ride at low altitudes, you *may* have to go one notch richer on the needle to compensate for the better breathing and more aggressive exhaust cam setup.
if you aren't excited now, well, up the voltage when you go for your weekly electro-shock therapy.
the wrooster
'01 yama wr250f