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ID # 34325265

2025 Yamaha SIDEWINDER L-TX SE

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Overview

The Sidewinder L-TX SE pulls its sporty and aggressive look from its predecessor, the Apex. Since its inception back in 2017, the L-TX SE has been a favourite sled because it has all the trail performance and capabilities found in our LE models but at a lower price point. The ARCS front suspension with Fox® RC adjustable shocks lead the charge with longer, lightweight forged spindles and optimized geometry. The addition of the 137-Inch Ripsaw II track, coupled SRV rear suspension with HPG shocks, puts all the power of the 998 Turbo to the snow. The race-bred chassis holds you forward, ready to meet anything the trail throws your way.

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.

Stryke Single Keel Ski

The Yamaha-designed single-keel ski strikes the elusive balance between lightweight steering effort and precision handling over a wide range of snow conditions. Special staggered carbides further enhance steering response, while a special shim pad assembly works in conjunction with the rubber saddle block to adjust the carbide pressure point. Overall ski stance is also adjustable by relocating the thick spacer located on each ski axle to the opposite side.

SE Suspension Package

The SE gets premium Fox Zero RC front shock absorbers with adjustable coil springs and a wide range of damping adjustments. These shocks include Fox FIST ice scraper technology, velocity-sensitive damping and high-quality hard chrome rods with T6 anodized 1.5 inch bodies. The skid frame front arm gets an aluminum 1.5 HPG gas shock and the rear duties are carried out by a beefier 2.0 aluminum HPG shock for fade-free performance.

key features

EBRS Engine Braking Control
ARCS Front Suspension
SE Shock Package
High Tech Turbo
137x1.25 Inch Camso Ripsaw II Track
Handlebar Controlled Digital Gauge

features and benefits

TOP

The turbo boosted, one-liter triple is unmatched when it comes to delivering incredible power with the refinement and quality you have come to expect from a Yamaha. Designed around a premium turbo unit, every engine component from intake to exhaust is dedicated to producing uncompromised performance. The proven Yamaha turbo has earned the respect and reputation befitting the industry's highest achiever. This engine produces the potent venom in the Sidewinder's bite.
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 ISC (idle speed control) circuit and ECU map using throttle valve movement and RPM information to reduce negative intake pressure during deceleration.
The ARCS front suspension features tall, high-strength, forged alloy spindles and lightweight upper A-arms. The geometry is designed to optimize suspension function while increasing ground clearance. This results in greater bite with less chassis roll for more predictable and consistent handling.
The Dual Shock SR rear suspension is the cumulative result of years of punishment and development in snocross and cross-country competition. This lightweight suspension offers premium bump compliance with excellent resistance to bottoming. The Dual Shock SR is a 'coupled' skid frame that utilizes a unique sliding front arm mount with half an inch of movement at the front arm slot. This active arm design delivers controlled (reduced) ski-lift during acceleration while retaining a good measure of independent front arm tracking. A solid rear axle layout with special idler wheel design and configuration provides great durability.
The SE gets premium Fox Zero RC front shock absorbers with adjustable coil springs and a wide range of damping adjustments. These shocks include Fox FIST ice scraper technology, velocity-sensitive damping and high-quality hard chrome rods with T6 anodized 1.5 inch bodies. The skid frame front arm gets an aluminum 1.5 HPG gas shock and the rear duties are carried out by a beefier 2.0 aluminum HPG shock for fade-free performance.

PERFORMANCE

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 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.
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.
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.
Engine coolant is circulated through the turbocharger to control both under-hood temperature and help cool the intake charge. Upon engine shut down, the convection energy produced by super-heated coolant at the turbo head keeps it circulating without the coolant pump in operation. This eliminates the need for an engine cool-down cycle while maintaining high durability in the turbo components.
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.

HANDLING

The SRV chassis layout was engineered with the goal of centralizing mass. Approximately 60 percent of the sled's weight is tightly centered within the main triangulation. The result is a quick-handling, well-balanced sled that's fun to throw around in a wide variety of conditions.
The SRV chassis combines a load-bearing triangulated structure with lightweight aluminum construction to create a neutrally balanced sled that's centered on the rider. The pyramidal upper frame creates chassis strength without excessive weight.
Regarded as the best high-performance terrain track available, the 137 x 1.25-inch lug design of the RipSaw II delivers incredible acceleration, braking control and handling in a wide variety of conditions.
The Yamaha designed single keel ski strikes the elusive balance between lightweight steering effort and precision handling over a wide range of snow conditions.
Unique, staggered carbides further enhance steering response.
A special shim pad assembly works in conjunction with the rubber saddle block to adjust the carbide pressure point.
Overall ski stance is also adjustable by relocating the thick spacer located on each ski axle to the opposite side.
The straight steering post on the Sidewinder is configured over the engine. It connects to a single bell crank for simplicity and light weight. The design also minimizes free-play in the steering system and delivers a tight turning radius.

COMFORT

The Sidewinder's lightweight, two-piece, tapered tunnel gives you strength for the long haul and a tapered fit for enhanced leg comfort and overall ride positioning. The reinforced running boards are punched with aggressive boot hold serrations and offer excellent snow evacuation to keep your feet planted where you want them.
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 electric start, 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.
Convenient handlebar positioning makes starting, 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.

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 RC
FRONT TRAVEL	10" (254 mm)
SKI TYPE	Yamaha Stryke Single Keel
REAR SUSPENSION	Dual Shock SR 137
CENTRE SHOCK	Monotube Alum-HP GAS 1.5
REAR SHOCK(S)	Monotube Alum-HP GAS 2.0
REAR TRAVEL	13.5" (343 mm)