Segment:
High-performance mountain snowmobile.
Target Audience:
Enthusiasts and riders seeking extreme mountain capability and power.
Competitors 2008:
Polaris RMK, Ski-Doo Summit, Arctic Cat M Series.
Engine Type:
Yamaha's Genesis 10F fuel-injected, 3-cylinder, 4-stroke engine known for power and reliability.
Suspension Type:
Long-travel, independent front and rear suspension designed for deep snow and aggressive mountain riding.
Track Design:
Aggressive track profile with deep lugs for superior traction in challenging off-trail conditions.
Engine:
Complete engine disassembly, assembly, troubleshooting, specifications, and maintenance for the Genesis 10F 3-cylinder 4-stroke engine.
Fuel System:
Fuel injection system (EFI), fuel pump, injectors, fuel lines, fuel tank, and emissions control systems.
Ignition System:
Ignition coil, spark plugs, ECU control, timing specifications, and troubleshooting.
Cooling System:
Radiator, coolant flow, water pump, thermostat, hoses, and maintenance procedures.
Drive System:
Clutch system (CVT), drive clutch, driven clutch, belt inspection and replacement, chaincase, differential, and track system.
Suspension:
Front suspension (independent double A-arm), rear suspension (Pro-Mountain), shock absorbers, springs, control arms, and adjustment procedures.
Steering:
Handlebars, steering column, tie rods, steering linkage, and lubrication.
Brakes:
Hydraulic disc brake system, caliper, master cylinder, brake lines, fluid specifications, and bleeding procedures.
Electrical System:
Battery, charging system (stator, regulator/rectifier), starter motor, lighting, wiring diagrams, fuses, relays, and diagnostic trouble codes (DTCs).
Body And Chassis:
Frame, body panels, seat, storage compartments, and cosmetic components.
Maintenance:
Regular scheduled maintenance, fluid changes (oil, coolant, brake fluid), filter replacements (oil, air), spark plug service, track tension adjustment, and lubrication points.
Troubleshooting:
Step-by-step diagnostic procedures for common and complex issues, including engine performance problems, electrical faults, and drive system malfunctions.
Repair:
Detailed instructions for component disassembly, inspection, repair, and reassembly, covering all major systems.
Rebuilds:
Complete engine rebuild procedures, including component tolerances, torque specifications, and assembly sequences.
Adjustments:
Carburetor/EFI adjustments (where applicable), throttle cable adjustment, brake lever free play, suspension adjustments.
Depth:
Comprehensive and in-depth, suitable for professional technicians and experienced DIY mechanics.
Diagnostic Codes:
Includes information on reading and interpreting diagnostic trouble codes (DTCs).
Specifications:
Detailed technical specifications, torque values, clearances, fluid capacities, and performance data.
Engine Family:
Genesis 10F
Engine Type:
Liquid-cooled, 4-stroke, DOHC, 5-valve per cylinder, inline-3 cylinder
Bore X Stroke:
82.0 mm x 66.2 mm
Compression Ratio:
10.4:1
Horsepower:
Approx. 130-135 hp (estimated, actual figures may vary by market/tuning)
Torque:
N/A (specific figures not readily available for this model year)
Fuel Delivery:
Electronic Fuel Injection (EFI) with dual throttle bodies
Fuel Type:
Unleaded gasoline, minimum 87 octane
Oil Type:
Yamalube 4R 10W-40 or equivalent API SG, SH, SJ, SL or SM
Oil Capacity:
3.70 US qt (3.5 L) with oil filter change
Oil Change:
Every 1,000 miles (1,600 km) or annually.
Air Filter Check:
Every 500 miles (800 km) or annually.
Spark Plug Inspection:
Every 1,000 miles (1,600 km) or annually.
Clutch Inspection:
Every 500 miles (800 km).
Track Tension:
Check and adjust as needed, typically every 500 miles (800 km).
Engine Oil:
Yamalube 4R 10W-40 (API SG, SH, SJ, SL or SM)
Coolant:
Permanent type antifreeze with a 50/50 mix of ethylene glycol and distilled water. Yamaha recommends Yamalube Coolant.
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Chaincase Oil:
Yamalube 75W-90 (API GL-4)
Drive Clutch Wear:
Some early models may exhibit accelerated wear on the drive clutch components, particularly under heavy use.
Efi Sensor Issues:
ocasional sensor failures within the EFI system can impact performance and require diagnosis.
Suspension Bushings:
As with many performance sleds, suspension bushings may require periodic inspection and replacement due to heavy stress.
