Market Segment:
Performance-oriented mountain snowmobile, targeting riders seeking power and agility in deep snow conditions.
Key Competitors:
Polaris Dragon, Ski-Doo Summit, Arctic Cat M-series.
Engine Platform:
Yamaha's renowned Genesis 3-cylinder, 4-stroke engine, known for its reliability, power delivery, and smooth operation.
Chassis Design:
Lightweight and agile chassis designed for off-trail performance and maneuverability.
Suspension Technology:
Advanced front and rear suspension systems for superior handling and comfort in varied snow conditions.
Engine System:
Detailed coverage of the 3-cylinder, 4-stroke, 1049cc Genesis engine, including disassembly, assembly, inspection, lubrication, cooling, and fuel systems.
Drivetrain System:
In-depth information on the Continuously Variable Transmission (CVT) system (clutch inspection, adjustment, replacement), chaincase, drive clutch, driven clutch, and drive belt.
Suspension System:
Front and rear suspension (Front Pro-Action, Rear Pro-Action), including shock absorber service, spring adjustments, linkage inspection, and alignment procedures.
Braking System:
Hydraulic disc brake system service, including caliper overhaul, fluid replacement, bleeding, and pad inspection.
Electrical System:
Complete electrical system diagnostics, wiring diagrams, lighting, ignition system troubleshooting (CDI unit, spark plugs), charging system (stator, regulator/rectifier), and starter motor.
Fuel System:
Fuel injection system diagnosis and repair, fuel pump, injectors, fuel lines, and fuel tank maintenance.
Chassis And Body:
Frame inspection, seat removal, handlebar adjustments, body panel repair and replacement, and track system inspection.
Routine Maintenance:
Scheduled maintenance tasks, lubrication points, filter replacement (oil, air), spark plug replacement, and track tension adjustment.
Troubleshooting:
Systematic troubleshooting guides for common operational issues, diagnostic charts, and symptom-based repair advice.
Engine Repair:
Complete engine overhaul procedures, piston, ring, cylinder, valve, and crankshaft service.
Transmission Repair:
CVT clutch disassembly, cleaning, component replacement, and drive belt installation.
Electrical Diagnostics:
Detailed wiring diagrams for all electrical components, testing procedures for sensors, actuators, and control modules.
Suspension Adjustment:
Adjustments for preload, damping, and alignment for optimal handling.
Depth:
In-depth, from basic adjustments to complete engine and component rebuilds.
Engine Type:
3-Cylinder, 4-Stroke, DOHC
Bore X Stroke:
82.0 mm x 66.2 mm
Compression Ratio:
11.0:1
Cooling System:
Liquid-cooled
Horsepower:
Approximately 128 hp (Note: Specific dyno figures may vary).
Torque:
Data not explicitly provided in product description, but generally strong low-end torque characteristic of this engine.
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded gasoline (minimum 87 octane recommended).
Ignition Type:
Digital CDI
Safety Certifications:
Meets all applicable EPA and relevant safety standards for snowmobiles.
Braking:
Hydraulic disc brake with ventilated rotor for effective stopping power.
Throttle Limiter:
Standard on many Yamaha models for controlled acceleration.
Handlebars:
Wide handlebars with integrated handguards for control and protection.
Seating:
Ergonomic seat design for rider comfort and stability.
Oil Change Interval:
Typically every 100-150 hours or annually, whichever comes first (refer to manual for exact specification).
Spark Plug Replacement:
Refer to manual, usually around 100-150 hours or based on inspection.
Track Tension Adjustment:
Check and adjust as needed, typically every 50 hours or after initial break-in.
Engine Oil Type:
Yamalube 4W (or equivalent API SG or higher, SAE 0W-30 or 5W-30).
Engine Oil Capacity:
Approximately 3.8 US quarts (3.6 Liters) with filter change.
Coolant Type:
Yamaha Super Coolant (or equivalent ethylene glycol-based antifreeze with corrosion inhibitors).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Drive Clutch Wear:
Common wear item requiring inspection and potential replacement of rollers, weights, or spring.
Suspension Bushings:
Wear on suspension bushings can lead to play and affect handling, requiring periodic inspection and replacement.
Track Sprocket Wear:
Wear on drive sprockets can occur, impacting track grip and durability.
Yamaha Motorsports:
Yamaha Corporation is a global leader in powersports, with a long history of innovation and performance in motorcycles, ATVs, and snowmobiles since the 1960s.
Nytro Lineage:
The Nytro platform was a significant development for Yamaha, introducing the fuel-injected Genesis engine to its mountain segment, offering a powerful and refined experience.
Manufacturing Origin:
Likely assembled in Japan or North America by Yamaha Motor Corporation.