Market Segment:
Performance-oriented trail and mountain snowmobiles.
Competitors 2002-2006:
Arctic Cat M-series, Ski-Doo Summit, Polaris RMK.
Engine Type:
Powerful, lightweight, high-revving 3-cylinder, 2-stroke engine.
Suspension Design:
Yamaha's ProAction suspension for superior ride and handling.
Chassis Design:
Lightweight and balanced chassis contributing to agile maneuverability.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures for the 700cc engine.
Fuel System:
Carburetor tuning, cleaning, and rebuilding; fuel pump; fuel lines; fuel tank maintenance.
Ignition System:
CDI unit, spark plugs, ignition coils, wiring diagrams, timing.
Cooling System:
Radiator, coolant, water pump, thermostat, hoses.
Exhaust System:
Muffler, pipes, gaskets, heat shields.
Drivetrain:
Clutch (primary and secondary), drive belt, chaincase, gears, sprockets.
Suspension Front:
Front suspension components, A-arms, shocks, skis, steering components.
Suspension Rear:
Rear suspension assembly (ProAction system), track, idler wheels, shock absorbers.
Brakes:
Brake caliper, master cylinder, brake fluid, brake pads, rotors, hydraulic lines.
Electrical System:
Wiring diagrams, battery, starter motor, lighting, gauges, switches, stator.
Chassis And Bodywork:
Frame inspection, plastics, seat, handlebars, controls, decals.
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, lubrication points, drive belt inspection.
Troubleshooting:
Diagnostic charts for common problems, symptom-based solutions.
Engine Rebuild:
Piston, ring, cylinder, crankshaft, and connecting rod replacement and specifications.
Clutch Adjustment And Replacement:
Primary and secondary clutch service, weight and spring modifications.
Suspension Tuning:
Shock adjustments, spring preloads, alignment procedures.
Electrical Troubleshooting:
Use of wiring diagrams for diagnosis of electrical faults.
Depth Of Coverage:
Detailed repair and overhaul procedures suitable for professional mechanics and experienced DIY enthusiasts.
Diagnostic Information:
Includes specifications, tolerances, and troubleshooting flowcharts.
Special Tools:
Identification of specialized tools required for specific procedures.
Engine Code:
700cc, 2-stroke, 3-cylinder (typically based on the Genesis engine architecture)
Bore X Stroke:
70.0 mm x 73.4 mm
Compression Ratio:
7.2:1 (typical, may vary slightly)
Horsepower:
~130-135 hp (estimate, actual figures may vary by model year and tuning)
Torque:
Estimated ~75-80 lb-ft (estimate)
Carburetor Type:
Triple Mikuni VM34SS or similar (2 or 3 per cylinder depending on specific version)
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
Oil Injection:
Yamaha's Autolube (Oil Injection System)
Oil Change Interval:
Recommended every 100-150 hours or annually. Check manual for specific mileage/hour recommendations.
Spark Plug Replacement:
Inspect every 1,000 miles, replace as needed. Check manual for specific intervals.
Drive Belt Inspection:
Inspect at every service interval, replace every 150-200 hours or if worn/damaged.
Engine Oil:
Yamaha 2-stroke synthetic oil (e.g., Yamalube 2W) or equivalent API-TC certified oil for oil injection system. Use 10W-30 or 10W-40 for premix if necessary (check manual).
Chaincase Oil:
Yamalube Gear Oil or equivalent 80W-90 gear oil. Capacity: Approx. 200-250 ml (refer to manual for exact capacity and level check).
Brake Fluid:
DOT 4 brake fluid.
Clutch Wear:
Accelerated wear on primary and secondary clutch components, especially with aggressive riding or improper belt tension.
Carburetor Fouling:
Carburetors can be prone to gumming up if the machine sits for extended periods without fuel stabilizer.
Track Tension:
Incorrect track tension can lead to premature wear of the track and suspension components.
Suspension Bushings:
Wear in suspension bushings can lead to play and affect handling.