WHAT IS IT? The Yoshimura RS- 9 2014 CRF250
exhaust retains the stock dual muffler concept.
WHAT’S IT COST? $895.00 (stainless/aluminum/carbon
end cap), $1395.00 (titanium, titanium, carbon end cap),
$1495.00 (titanium/carbon/carbon end cap).
CONTACT? www.yoshimura-rd.com or (800) 634-9166.
WHAT STANDS OUT? Here’s a list of things that
stand out with the Yoshimura RS- 9 2014 CRF250 dual
(1) Dual exhaust. In 2013, Honda made the
decision to equip the CRF450 with a dual-exhaust
system. They did this to push more weight forward for
improved mass centralization. An additional benefit,
although questionable considering that there are now
two mufflers, is decreased potential for muffler damage
in the event of a crash. This wasn’t Honda’s first rodeo
with twice pipes—they had dual mufflers on the 2006
to 2009 CRF250s. Honda brought the twin-pipe concept
back to the 2013 CRF450 first, and for 2014 equipped the
CRF250 with dual exhausts also. The downsides of dual
exhausts are added weight, more complexity, a higher
price and more girth at the rear of the bike. Yoshimura
has put their
special touches on their RS- 9 dual-exhaust system.
( 2) Installation. In the box is a bag of goodies that
includes detailed instructions, spacers, rubber grommets,
washers, exhaust springs, a spring puller and 3mm hex
key. Follow the instructions to ensure that all the
spacers and rubber grommets are in the proper places.
The exhaust fits flush, but do not crank down any bolts
until the entire system is in place.
( 3) Performance. The 2014 CRF250 is not
rocket-ship-fast. It is smooth and manageable, but those
words don’t describe what 250 four-stroke owners are
looking for. They want more midrange hit and a bike
that revs to the moon. This is where the Yoshimura
RS- 9 comes to the rescue. While it didn’t solve all the
CRF250’s power problems, it did make a noticeable
difference. The power delivery was still smooth, but
it ramped up faster and had more mid-to-top pull. The
livelier powerband allowed the CRF250 to get back up
to speed on the exit of corners. Over-rev was increased,
allowing riders to carry the power farther and shift later.
( 4) Weight. The Yoshimura RS- 9 comes in both
titanium and stainless, with the Ti version saving more
weight than the stainless one, but even the less
expensive version saves you over 2 pounds.
WHAT’S THE SQUAWK? We would have liked the
powerband to have more midrange hit.
The Yoshimura system fits like a glove. It
YOSHIMURA RS- 9 2014 CRF250 EXHAUST
produces better midrange-to-top-end power,
but it is hampered by the fact that the CRF250
is down on power to the other 250s.
MXA TEAM TESTED