VOLUME 57 ISSUE 21 MAY 27, 2020 P83
around 22 miles. While the bike
did keep running past 22 miles,
we could see that the tank was
about dry and it stopped at
24.7 miles, about 28 percent
less distance. Not quite the
claimed 30 percent increase,
but still significant. Extrapolat-
ing that to the 2.55-gallon tank,
the SmartCarb will go about
80 miles while the stock Keihin
will run dry at around 63 miles.
That is a long walk if it leaves
you that far from your truck or a
big difference in pit stop strat-
egy for racing.
The Keihin line of carbure-
tors have been refined for
several years, and in our
experience, is superior to the
Mikuni carburetors. So it is
impressive that the SmartCarb
can provide a lot of benefits
over that proven product. To
achieve better performance on
the trail, (nearly) 30 percent
increase in mileage, virtually
eliminate the need for tuning
for atmospheric conditions
and provide a tool-free method
for any necessary fine tuning
makes this a great product. We
only tested the SmartCarb on a
2020 Beta 300 RR but based
on this experience, we feel that
it would have similar results
on any carbureted two-stroke,
especially the last couple of
years of KTMs that came with
a Mikuni carburetor. We know
that Cody Webb has chosen
to use a SmartCarb on his
factory-backed Sherco after
testing it against the Keihin and
Lectron. The suggested retail
for the SmartCarb SC2 is $699
to $744 depending on your ap-
plication. CN
with the SmartCarb back at the Mo-
toVentures property. We setup a loop
and with one gallon of fuel, rode laps
until the bike came to a stop at 31.5
miles. We installed the Keihin, put a
gallon in the tank and proceeded to
do laps on the same loop. We had
plenty of riding time to do some math
in our head and figured that if the
claim was correct, we would run out at
The Beta's 36mm
Keihin PXK
carburetor (left)
is already a good
fuel mixer, but
the SmartCarb
(right) has its
advantages.
