998 Genesis Turbo Engine
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 industries highest achiever. This engine produces the potent venom for the Sidewinders bite.
Yamaha Variable Electric Power Steering – ‘EPS’
Yamaha introduced EPS for snowmobiles in 2011 pioneering the innovative technology that both reduces steering effort and increases steering precision. The newest generation has reduced weight by over 3 pounds and incorporates a ‘brushless’ DC motor. No brushes to wear out means greater reliability and much better thermal performance or ability to maintain full output power for longer periods of time. Variable assist EPS utilizes a magnetic torque sensor to measure steering input based on torsion or ‘twist’ of the steering post resulting from handlebar input combined with ski resistance. The contact-less, magnetic torque sensor supplies this data to an integrated ‘control module’ which in turn, signals the brushless ‘servo-motor’ to assist the steering through its powered, worm-gear ‘drive assembly’. The system also provides engine ‘rpm’ and vehicle ‘speed’ data to the control module which calibrates for increased assistance at lower speeds then tapers off as the vehicle accelerates giving a more balanced, natural feel or ‘connection’ to the terrain. When the skis encounter an abrupt force that works against the steering input, the torque sensor alerts the control module to apply additional assistance to counteract or ‘resist’ the negative input. This effectively reduces the steering effort required while enhancing predictability for greater rider confidence and less fatigue.
YSRC High Performance Clutch System
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.
Fox® 1.5 QS3 Front Shocks
The Sidewinder L-TX GT is equipped with Fox QS3 shocks for a premium upgrade to this model. The Fox high-pressure gas 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. Dual rate coil springs provide additional sag dropping the GT’s nose slightly for razor sharp steering response.
Dual Shock SR 137 Q53 Rear Suspension
The Dual Shock SR 137 rear suspension offers premium ride comfort with additional bump bridging capabilities, floatation and traction. The ride and comfort is further enhanced with HPG center and adjustable Fox QS3 rear shock absorbers. The SR 137 is a “coupled” suspension that utilizes a unique “sliding” front arm mount. With up to a half-inch of movement at the front arm “slot,” the system allows the SR 137 to deliver controlled ski-lift during acceleration while still retaining front arm bump compliance.
ARCS Front Suspension
The ARCS front suspension features tall, strong forged alloy spindles and redesigned lightweight upper A-arms. Revised for optimum suspension function and increased ground clearance, the Sidewinder L-TX GT has a more predictable and consistent handling with less chassis roll.
Engine Braking Reduction System
The effect of 4-stroke ‘engine braking’ when the throttle valves are closed has a significant impact on handling and ride character, so Yamaha developed a special system which employs the ISC (idle speed control) circuit and ECU map that uses throttle valve movement and RPM information to reduce negative intake pressure during deceleration.
Stealth Control System
The handlebar controls feature a left-sided switch cluster for “on-the-fly” access to the multi-step hand and thumb warm adjusters, the push button reverse gear shift and the multi-function gauge that can be easily select information with a convenient toggle. On the right side, a clean bar hosts an ergonomically-shaped throttle lever and a simple, stand-alone emergency stop switch. The Hayes ‘Stealth’ brake cylinder is equipped with a composite brake lever that, coupled with a lightweight caliper, offers better feel and powerful stopping performance.