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The Ultimate in Four Stroke Performance
looking at what is the biggest thing to hit snowmobiling
since..... the Snowmobile.
Introducing the all-new RX-1. The first snowmobile designed
specifically around a race-bred,
high-performance four-stroke engine with more than
145 hp, the Genesis Extreme. Derived
directly from the blistering in-line, 20-valve 998cc
four-cylinder found inside our equally revolutionary R1
motorcycle, an award-winning supersport machine without
The RX-1’s pulse-racing power and torque, that
blows away the competition’s
big-bore twins, however, is merely where the
fun begins, as every component — engine, chassis,
suspension, bodywork — of this incredible machine has
been engineered with one goal
in mind: raise the level of ultimate snowmobile
It was only natural that things should come to this.
After all, our ground-breaking
four-stroke machines have been dominating motorsports —
on asphalt and dirt — for quite some time.
And so enters the all-new, standard-shattering RX-1,
packing performance so radical and design so
innovative, it’s destined to revolutionize snowmobiling
as we know it.
Yet one thing this extraordinary new four-stroke
machine doesn't reinvent is what you expect to see on
the scales - it weighs in like an SRX 700 would, if
equipped with electric start. This outstanding
accomplishment is proof, again, of the technological
might and engineering capability of Yamaha.
Nothing else even comes close:
From its hellaciously powerful, R1-derived Genesis
Extreme engine to its aggressive, all-new Deltabox
chassis, independent wishbone front suspension and
wind-cheating bodywork, the
RX-1 is hands-down the most cutting-edge
high-performance snowmobile the industry has ever seen.
Available in Team Yamaha Blue/White and Twilight Black.
And for a limited time,
during Spring 2002... Liquid Silver.
The all-new RX-1
New high-performance 998cc 4-stroke
engine, based upon the
successful R1 motorcycle design, has more than 145
horsepower! It out-performs the legendary SRX in
acceleration and top speed. This engine not only has
more horsepower than competitor's 800cc twins do… it
also develops an incredible 65% more low-end torque.
Motorcycle-based 4-stroke engine technology delivers
high power-to-weight ratio with exceptional
Compact in-line four-cylinder design fits within
tunnel width to allow lightweight and strong chassis
Exclusive 30 degree
tipped back engine layout with forward-facing intake,
and under-the-seat exhaust, centers the engine mass
for quick response to driver's input.
Patented 5-valve head design allows optimum
airflow for high-RPM power and efficient fuel
Lightweight forged pistons operate at
a 11.8 to 1 compression ratio on 87-octane fuel.
Extreme exhaust system has four straight-out-the-back
head pipes that collect through an X-style crossover
system to two rear exhaust outlets. This design
minimizes exhaust flow restriction for maximum power
silencer position assists vehicle balance for
Gear-driven output shaft allows high engine RPM and a
lower, more efficient drive clutch speed. Rubber
dampened isolation system reduces torque pulses for
greater clutch and V-belt life. Output shaft also
drives water pump and oil pump.
Four 37mm constant-velocity carburetors have
high airflow with easy throttle effort.
Industry-leading liquid-heated carburetors
maintain excellent throttle response and fuel
Lightweight and compact 18-pole magneto uses
rare-earth flywheel magnet material to generate 425
watts of electrical power.
Lightweight and strong motorcycle-type engine mounts
effectively isolates vibration while maintaining
Dry-sump oiling system increases
engine power and reduces starting effort.
Electric starter motor output delivers
1.5 times more cranking power than typical 2-stroke
starters with no increase in size due to use of
powerful rare-earth magnets. Easier cold weather
starting is achieved while reducing weight by 2.8
Low-maintenance battery develops
strong cranking power and saves weight.
New aggressive clutch calibration
is used due to the Genesis Extreme 4-stroke engine's
high-torque and high-horsepower characteristics. New
high-force drive clutch weights, working with a new
multi-angle helix, generate high belt squeeze force
for quick acceleration and responsive back-shift.
Predator track, featuring
1" lugs, increases acceleration and provides
excellent handling. This track is 1.5 pounds lighter
than the SRX track.
Compact hood shape
reduces aerodynamic drag for increased top speed.
Exclusive Deltabox chassis
has up to 4 times the torsional rigidity than the
competition while reducing chassis weight by 9 pounds.
This stiff design controls chassis flex for a solid
feeling under hard acceleration, quick response when
cornering and smooth suspension action in the bumps.
Deltabox chassis design
incorporates 4 high-strength die-castings produced by
high-vacuum high-pressure process. This exclusive
method allows lightweight thin-wall construction and
increased strength. Force is also carried over the
engine to the steering gate with a lightweight
routed to side of engine, allows the engine to be low
in the chassis.
Engine center of
gravity is 0.8" lower and 2.0" further back than the
mounting system isolates engine vibration, controls
drive belt misalignment under torque, and adds
Incorporating the heat
exchangers under the footrest area increases tunnel
New chassis has
wide footrests and running board traction for easy
Double wishbone front suspension
moves through 9" of vertical travel with zero
bump-steer and no spindle caster angle change for
razor-sharp handling and confidence in the bumps.
Optimum front suspension travel delivers excellent
bump-eating performance with flat high-speed cornering.
Double wishbone front
suspension design maintains accurate ski-to-ski
alignment (zero bump-steer) providing consistent ski
tracking in bumps or when riding at high speed.
geometry maintains the spindle angle at a stable 23
degrees so that steering effort remains consistent
throughout the full ski travel.
Unequal length A-arm
design minimizes ski center-to-center change (ski
scrub) for consistent handling on rough, rutted
large 40mm diameter high-pressure shock absorbers
increase shock fade resistance.
stabilizer system sharpens cornering and big bump
lightweight plastic skis, with dual-angle keel, give
accurate steering with low steering effort.
Comfort & Convenience
Powerful and lightweight
electric start feature is standard equipment on all
RX-1 models. No more rider overheating from trying to
pull-start your snowmobile on cold mornings - no more
recoil rope stains on your jacket.
long-travel rear suspension
soaks up the bumps with 11.5" of vertical travel. This
long travel rear suspension delivers performance,
confidence and comfort when running through tight
corners or through miles of stutter bumps.
Equipped with aluminum
high-pressure gas shocks with multi-rate springs.
40mm diameter high-pressure center shock absorber
features new valving design for greater tunability
and increased durability and response. Larger oil
capacity increases shock-fade resistance.
Adjustable rear control
rods for increasing or decreasing suspension weight
single-point, Quick-Adjust rear suspension allows the
rider to quickly adjust both effective shock damping
and spring rates to suit their riding style.
protectors and front heat exchanger guard allow for
easier after-market track studding.
Exclusive LCD digital gauge
with super-accurate stepping motor for the
tachometer. New: Gauge is backlit for easy
night reading. Integrated multiple functions include
odometer, tripmeter, self-diagnosis feature, fuel
level, hand / thumb warmer settings, low fuel, low
oil pressure and high water temperature warning
system powers new dual headlights for the brightest
light in the industry.
Handlebar mounted controls with industry first
Digital-Controlled hand and thumb warmers. LCD gauge
easily lets you know the individual hand and thumb
Easy-pull throttle lever with new shape for shorter
pull distance and increased comfort.
Lightweight seat with
R1-type dual taillight.
Dual-Piston Hydraulic brake design for lighter weight
and efficient cooling.
Excellent 4-stroke fuel
economy...up to 30% greater than big displacement
Save money on operation
costs because there's no need to add 2-stroke oil.
Low noise levels
provide less fatigue for all-day snowmobiling.
Dual Exhausts do not emit 2-stroke exhaust smell.
RX-1 Limited Edition (available during
the Spring Power Surge Promotion only)
comes in exclusive Liquid Silver color with special 3-D
name badge, carbon fiber print graphics, great-looking
floorboard traction pieces and carbon fiber print A-arm
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