Key Features
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ARCS Front Suspension
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Fox Zero QS3/QS3-R Kashima Shock Package.
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'Stryke' Single Keel Ski
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Over-the-engine steering
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Heated Trail Seat
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Stealth control system
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Push Button Reverse
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TOP
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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 is virtually the potent venom of the Sidewinders bite. -
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 ARCS front suspension features taller, high-strength, forged alloy spindles and redesigned lightweight upper A-arms. The geometry is further revised 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. -
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 trail conditions.
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PERFORMANCE
- The Yamaha-developed Mitsubishi ECU uses a series of 9 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 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 — something that is 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, always at the ready for the next acceleration with seamless power delivery.
- A dual-piston brake caliper applies braking forces directly to the drive shaft and is mated to an wave-style, lightweight drilled rotor. The LE-Only rotor removes 1lb of rotating mass from the vehicles driveline, helping transfer all of the Sidewinder's available horsepower to the snow. The 'Stealth; master cylinder and composite Stealth brake lever offer excellent modulation and feel with ergonomically precise operation.
- 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.
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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.
- The Yamaha design, 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.
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COMFORT
- 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 in the Sidewinders bite.
- 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 Fox Zero QS3/QS3-R shocks offer simple and effective adjusters for both compression and rebound settings to easily dial in the ride. These premium shocks also include a special Kashima coating for greater wear resistance than other hard anodized finishes. It also gives them a lubricating property that decreases the friction between the alloy parts and seals. This results in a smoother feel to the suspension and unparelled durability. To further improve durabilty, ice scrapers are used to prevent moisture intrusion into the shock body.
- 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 SR 137 skid remains a “coupled” suspension that utilizes a unique “sliding” front arm mount. With up to half-inch of movement at the front arm “slot”, the system allows the SR 137 to deliver controlled (reduced) ski-lift during acceleration while still retaining front arm bump compliance.
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