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ID # 34325264

2025 Yamaha SIDEWINDER X-TX SE

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Overview

The 2025 Sidewinder X-TX SE is all about a quick shift from groomed trail to carving between the trees in the deep snow. Kitted out with VersAttack 146 rear suspension and 2.0-inch deep-lug Camso 'Challenger' track, the front end sports a narrower 40-inch ski stance supported by wide Yamaha Mountain Skis. The tunnel and steering system are based on the SR-M Mountain chassis complemented with a lightweight mountain seat, tapered foot boards and Stealth controls. Top-shelf Fox® Zero QS3 shocks are found up front to accommodate a wide range of terrain and riding styles. The iconic Genesis 998 Turbo adds all the power needed to blast through the powder.

Specifications

Model

Sidewinder

Category Name

Snowmobiles

Year

2025

Sale Type

New

Manufacturer

Yamaha

Color

Redline/Black

Engine Size

998 cc

highlights

Final Edition Badging

A badge representing all 20,476 days Yamaha has been in the Snowmobile business. May it spark many conversations about the best sled, the coolest innovation, the longest ride.

Yamaha Mountain Ski

The lightweight Yamaha Mountain Ski delivers everything you want in a deep snow ski. Its wide footprint enhances flotation and actively lifts the sled’s nose up on plane in deep powder. Traction lugs on the top of the ski give you a sure foothold when the situation gets really gnarly. The wide and deep keel design delivers light steering effort, yet confident and predictable handling on hard pack and in fresh fluff.

Premium Fox Zero 1.5 QS3 Front Shocks

The Sidewinder X-TX SE front suspension is equipped with Fox Zero QS3 shocks for a premium upgrade to this model. The Fox high-pressure gas, coil-spring shock features a piggyback chamber to deliver reduced fading, exceptional control, and three easy-to-adjust compression damping performance settings, so you can quickly and easily adjust the ride to conditions and riding preference.

key features

High Tech Turbo
Premium Fox Zero QS3 Front Shocks
146-inch X 2.0-inch Camso 'Challenger' Track
EBRS Engine Braking Control
Yamaha Mountain Ski
40-inch Ski Stance
SRV-M Type Front Suspension
Mountain Seat

features and benefits

TOP

The nickel alloy turbine body is extremely strong and precise, able to withstand highly elevated temperatures. Supported by premium, ceramic ball bearings the Inconel turbine blade assembly is very light and strong. This yields a low moment of inertia for lightning quick response to exhaust gas input. Triple throttle bodies are used exclusively to further enhance the quick delivery of compressed air from the impeller to intake valves.
The Sidewinder X-TX SE front suspension is equipped with Fox Zero QS3 shocks for a premium upgrade to this model. The Fox high-pressure gas, coil-spring shock features a piggyback chamber to deliver reduced fading, exceptional control, and three easy-to-adjust compression damping performance settings, so you can quickly and easily adjust the ride to conditions and riding preference.
The dual-shock 146 rear suspension is fitted into a light mountain, tapered tunnel. It also features a mountain style front arm with special 146-inch rails that utilize a long rear QS3 shock with a lightweight single pull rod. A unique design shock pivot is added to the uncoupled front arm to provide smooth transfer for great handling both in and out of the powder.
The 2.0-inch lugged Camso® Challenger track was born in the Rockies and offers up the best traction for off-trail play wherever that takes you. The longer 146-inch length offers plenty of float and lift to keep you going, but it's not so long that you have to struggle to maneuvre in tight, challenging terrain.

PERFORMANCE

Yamaha engineers wanted an engine that's exceptionally quick to respond with little or no 'lag' as found in a conventional turbo. One of the ways they achieved their goal was to develop an intake system using three separate throttle bodies positioned very close to the intake valves, instead of just one feeding long intake tubes. It’s an innovation not seen in any other production turbo on the planet, and another first for Yamaha with the Genesis turbo.
The effect of four-stroke engine braking when the throttle valves are closed has a significant impact on handling and ride character. Yamaha developed a special system which employs the Idle Speed Control Circuit (ISC) and ECU map using throttle valve movement and RPM information to reduce negative intake pressure during deceleration.
The Yamaha-developed Mitsubishi ECU uses a series of nine sensors to gather running condition data which it computes using a predetermined memory ‘map’. It then adjusts ignition timing, fuel delivery, manifold air pressure and turbo boost pressure to produce maximum performance under any condition—reliably.
Unlike conventional turbo 'blow-off' valves, the Yamaha ABV redirects air pressure back into the intake side of the compressor to prevent surge and help maintain impeller speed, resulting in ready acceleration and seamless power delivery.
The YSRC primary and roller secondary clutches are calibrated for durable, cool operation. They harness and transfer the massive torque produced by the Genesis Turbo efficiently to the track while minimizing drive belt wear. The primary shifts out aggressively to use all the power on tap while the roller secondary is quick to back-shift and provides additional ratio through its oversize sheaves to keep accelerating long after the others have signed off.
The sleek SRV-M Front Suspension is ultra-compact to reduce unwanted spindle and suspension component drag in deep snow. The narrow stance allows for extreme maneuverability and delivers aggressive lean angles for incredible side-hilling and powder turn capabilities. The lightweight, forged aluminum spindles join the widely spaced upper and lower control arms producing a large caster angle for tight side-hilling and ease of steering. The clean, narrow overall stance and elimination of the sway bar also greatly enhances deep snow agility.

HANDLING

The lightweight Yamaha Mountain Ski delivers everything you want in a deep snow ski. Its wide footprint enhances flotation and actively lifts the sled’s nose up on plane in deep powder. Traction lugs on the top of the ski give you a sure foothold when the situation gets really gnarly. The wide and deep keel design deliver light steering effort yet confident and predictable handling on hard pack and in fresh fluff.
The 40-inch ski stance hits the sweet spot between on-trail stability with cornering prowess and off-trail maneuverability for deep snow carving with quick transitions from side-to-side. Yamaha Mountain Skis with their wide profile and single-keep design complement the narrower stance for off-trail agility and on-trail confidence.
A dedicated, tall steering post delivers optimum ergonomics for standup riding. The 5.5-inch riser with broad, molded, curved-end mountain bar and incorporated mountain strap delivers ample leverage for off-trail riding. The system is adjustable to dial in sweep and reach to help keep you in the sweet spot.

COMFORT

The handlebar controls feature a left-hand switch cluster which allows for 'on-the-fly' access to the multi-step hand and thumb warmer adjusters. Information available on the multi-function gauge can be easily selected with a convenient toggle switch and the push button reverse gear switch is also located in the left-hand cluster. The right side of the bar is clean with an ergonomically shaped throttle lever and simple, stand-alone engine stop switch. The Hayes 'Stealth' brake cylinder is equipped with a composite brake lever providing great modulation for better feel and powerful stopping performance.
Lightweight with a tall and narrow profile, the X-TX mountain seat is both shorter and more tapered towards the front than our standard trail seat. This allows for easier rider transitions from side-to-side, and improved stand-up ergonomics.
Convenient handlebar positioning makes shifting to and from reverse easy with just the push of your thumb. A servo motor shifts the drivetrain into reverse simply and consistently. An audible warning beeper reminds you when you are still in reverse.
The Sidewinder's generous 8.9-gallon / 33.6 litre fuel tank serves more purposes than just carrying a day's worth of fuel. It also cradles the battery and is the platform for the quick-release trail seat. The ever-changing fuel load is carried low and rearward, helping centralize the overall mass and balance of the sled.

engine / power train

TYPE	Turbo 4-stroke / 998 cc
ENGINE CLASS	Ultra Performance
CLUTCH	YSRC
FUEL DELIVERY	Electronic Fuel Injection
FUEL CAPACITY	8.9 gal. (33.6 L)

suspension

FRONT SUSPENSION	Independent Double Wishbone
FRONT SHOCKS	Fox 1.5 Zero QS3
FRONT TRAVEL	9" (229 mm)
SKI TYPE	Yamaha Mountain
REAR SUSPENSION	Uncoupled Versattack 146
CENTRE SHOCK	Monotube Alum-HP GAS 1.5
REAR SHOCK(S)	Fox Zero QS3 2.0
REAR TRAVEL	13.5" (343 mm)