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RIDE REVIEW I 2027 YAMAHA YZ250F
everything works harmoniously,
Yamaha engineers dissected
the airbox, engine, header pipe,
muffler, chassis and more.
The forward-facing airbox is a
signature Yamaha design. This
year, the airbox cover has fewer
holes, and the air boot features
a shorter, funnel-shaped de-
sign with an internal resonator.
Sound reduction was a major
undertaking for this year's
bike, and Yamaha says these
changes helped reduce noise
by six decibels compared to the
previous version.
constant model evolution, and
you can see why Yamaha is roll-
ing out an all-new bike.
What's New
Yamaha wants to maintain its
current dominance while meet-
ing these new sound regula-
tions. Sounds simple, but you
can't just slap on a new muffler
and call it a day. To ensure
Why The Change
If the bike is so dominant, why
does it need to change? Aside
from the standard four-year
model cycles and the quest for
constant innovation, new sound
restrictions from the AMA and
FIM are affecting new moto-
cross race bikes. For 2027, AMA
Pro Racing is implementing a
109-decibel sound rule. If manu-
facturers want to sell a bike
on Friday that can race a Pro
National on Saturday morning
in stock trim, they must comply
with this new rule. Pair that with
The 2027 Yamaha YZ250F is
essentially all-new, with most of
the redesign aimed at the updated
AMA sound restrictions.
