Category:
Performance Snowmobile
Competitors 2008:
Arctic Cat M-Series, Polaris RMK, Ski-Doo Summit
Engine Architecture:
Triple-cylinder, 4-stroke, DOHC
Chassis Design:
Lightweight and agile, optimized for mountain riding
Suspension Innovation:
Pro-Riding front and Pro-Action rear suspension systems for superior control and comfort
Engine System:
Complete engine overhaul, diagnostics, tuning, fuel injection, ignition, lubrication, cooling, exhaust
Drivetrain System:
Clutch, primary drive, secondary drive, chain case, lubrication
Suspension System:
Front suspension (Pro-Riding), rear suspension (Pro-Action), shock absorbers, linkages, geometry adjustments
Brake System:
Hydraulic disc brakes, caliper service, master cylinder, bleeding procedures, component replacement
Electrical System:
Ignition system, lighting, starting system, charging system, wiring diagrams, troubleshooting electrical faults, sensors
Bodywork And Chassis:
Frame, body panels, seat, handlebars, controls, decals, graphics
Routine Maintenance:
Oil changes, filter replacements, chain lubrication and adjustment, spark plug service, battery care, track inspection
Diagnostic Procedures:
Troubleshooting guides for common malfunctions, fault code interpretation, electrical testing
Repair Procedures:
Step-by-step instructions for component removal, installation, and adjustment
Rebuild Procedures:
Detailed instructions for engine and component overhauls
Depth:
Professional level; covers complete disassembly, rebuilding, and advanced diagnostics
Engine Type:
4-stroke, DOHC, 5-valve per cylinder
Bore X Stroke:
82.0 mm x 66.2 mm
Compression Ratio:
11.2 : 1
Horsepower:
Approx. 126 hp @ 7000 rpm
Torque:
Approx. 91.5 lb-ft @ 6000 rpm
Fuel Delivery:
Fuel Injection (YCC-T / Yamaha Chip Controlled Throttle)
Fuel Type:
Premium Unleaded Gasoline (91 Octane or higher recommended)
Oil Type:
Yamalube 4 (or equivalent) 20W-40 API SG, SH, SJ
Oil Capacity W Filter:
4.8 Liters (5.1 US qt)
Crash Safety Equivalent:
N/A (Snowmobile standards differ)
Braking System:
Hydraulic disc, front and rear
Throttle Control:
Thumb throttle for precise control
Lighting:
Halogen headlights, LED tail/brake light
Ergonomics:
Adjustable handlebars for rider comfort and control
Display:
Digital/Analog combination meter with LCD information display
Instrumentation Features:
Speedometer, tachometer, fuel gauge, odometer, trip meter, clock, diagnostic indicator
Throttle Control System:
Yamaha's YCC-T electronic throttle control for precise fuel and ignition mapping.
Diagnostic Port:
On-board diagnostics with a dedicated diagnostic connector for service tools.
Initial Break In Service:
Recommended at 100-200 miles (160-320 km) - check manual for details
Engine Oil Change:
Every 1000 miles (1600 km) or annually, whichever comes first
Chain Case Oil Change:
Every 2000 miles (3200 km) or annually
Engine Oil Grade:
20W-40 API SG, SH, SJ (e.g., Yamalube 4)
Chain Case Oil Grade:
SAE 80 API GL-4 (e.g., Yamalube Gear Oil)
Coolant Type:
Permanent type anti-freeze (ethylene glycol base) mixed with distilled water (50:50 ratio recommended)
Drive Belt Wear:
Regular inspection and replacement of drive belts due to heat and stress is crucial.
Suspension Bushings:
Wear in suspension linkage bushings can affect handling and require periodic replacement.
Spark Plug Fouling:
Can occur in certain riding conditions; proper spark plug selection and maintenance are important.
Yamaha Powersports Legacy:
Yamaha has a long-standing reputation for innovation and performance in motorsports, including snowmobiles, motorcycles, and ATVs.
Nytro Introduction:
The FX Nytro line, introduced in the mid-2000s, marked Yamaha's strong entry into the mountain segment with its innovative 3-cylinder 4-stroke engine and advanced chassis.
Manufacturing Location:
Yamaha Motor Corporation, Japan (or North America for some components/assembly)
