INSTOCK 2014 YAMAHA YZ250F
Dubach Racing Development helped coordinate the build by sending the ngine to C4MX while they were
working on exhaust and chassis modifications.
Frenchie worked his magic on the YZ250F
and degreed the exhaust cam to get more
torque, opened the airbox, modified the head,
modified the clutch hub for more preload, and
remapped the ignition. The throttle body was
also sent to Injectioneering to be modified.
Dr. D, meanwhile, installed one of its Stainless Steel/Aluminum NS- 4 exhaust systems, a
radiator lowering kit, and an hour meter.
For the suspension, we headed to see
Ross and Will at Enzo Racing. These guys
do a great job on any bike, but they earned a
reputation as masters of KYB suspension. We
entrusted the handling of our bike to them, and
they revalved the fork and shock, added an
Enzo high-speed adjuster on the shock, and
installed the appropriate springs for our setting.
Renthal supplied the chain, sprocket, bars,
grips, and Intellilevers. We were hoping not to
crash on this thing, but if it did throw us off,
there was no way we were breaking Intellilevers.
Faster USA provided our wheel set. They
can build you any color combination you can
think of, including spokes, hubs, nipples, and
rims. They use their own machined hub with
Excel or DID rims and do anodizing and pow-
der coating. Our wheels are a black-and-blue
combo that looks amazing.
One Industries designed our graphics for
the bike. We matched those with a seat from
MotoSeat and some new MX32 Dunlop tires.
Hammerhead supplied some bling for the
bike, though they were still in the process of
making parts for it at press time. They had
axle blocks and various blue anodized parts
that were a nice touch.
We finished the project off with a filter
from DT-1 and some VP race fuel and it was
ready to rip. All that was left was to hit the
dirt. To see our Dr. D Yamaha YZ250F in action, go to www.racerxonline.com and check
out the Racer X Films tab. X