QUICKSPIN I Slavens Racing Yamaha YZ300X
P90
to full throttle, and they say the
Lectron provides more consis-
tent fueling over a wide range of
conditions, without frequently
re-tuning the carb like you might
need to with a PWK.
Again, they could've stopped
there; instead, they wanted to
supplement the YZ's manual
kickstarter system with a push-
button electric system, like
most off-road motorcycles have
now. They chose an electric-
start kit from Fisch Moto, the
same unit Cody Webb uses on
his hard-enduro YZ two-stroke.
This all-in-one bolt-on electric-
start conversion kit requires
some open-heart surgery and is
another significant investment
at around $1000 in parts alone.
But, again, the kit includes
everything you need, including a
battery. The entire system (with
battery) adds nearly 10 pounds
to the bike's weight, but the con
-
venience of push-button starting
(Top) Cylinder
Works provided
the big-bore kit
that increased
displacement
from 249cc to
295cc. (Bottom)
It makes sense
to upgrade the
bike's 10-year-
old clutch.
Slavens selected
a Rekluse
Apex clutch,
maintaining
its manual
operation. Fisch
Moto provided
the e-start
conversion.
A comfortable seat is
crucial for off-roading,
which is why Slavens
chose Seat Concepts for
its seating needs.
tex ignition, replaced the stock
Keihin PWK38S carburetor with
a 38mm Billetron Pro carburetor
from Lectron, swapped the OEM
reed block with Moto Tassinari's
V-force reeds, and installed an
FMF Fatty exhaust and Tur
-
binecore 2.1 silencer.
You might wonder why the
carburetor swap. Tunability,
says Slavens. With the Lectron,
Slavens likes that you can inde
-
pendently fine-tune fuel delivery
(via its metering rod, torque jet
and power jet) across the pow
-
erband, from idle/low throttle
