Vehicle Segment:
Performance-oriented trail snowmobile.
Competitors:
Competed against models from Ski-Doo, Arctic Cat, and Polaris during its production run.
Engine Configuration:
Known for its responsive liquid-cooled twin-cylinder engine.
Performance Focus:
Designed for sporty trail riding with good acceleration and handling.
Engine Service:
Complete disassembly, inspection, repair, and reassembly of the 561cc twin-cylinder engine.
Fuel System:
Carburetor tuning and rebuilding, fuel pump inspection, fuel line maintenance.
Ignition System:
CDI unit testing, spark plug specifications, ignition coil testing.
Cooling System:
Radiator and fan maintenance, coolant specifications and flushing.
Drivetrain And Transmission:
Drive clutch and driven clutch service, belt inspection and replacement, chain case maintenance, and lubrication.
Suspension And Steering:
Front and rear suspension component inspection, shock absorber service, steering linkage and geometry adjustments.
Braking System:
Brake caliper service, pad replacement, brake fluid specifications and bleeding procedures.
Electrical System:
Wiring diagrams, lighting system troubleshooting, battery maintenance, starter motor and alternator checks.
Chassis And Bodywork:
Frame inspection, body panel removal and installation, seat and storage compartment service.
Routine Maintenance:
Detailed instructions for oil changes, filter replacements, lubrication points, and general inspection.
Troubleshooting Guides:
Diagnostic charts for common starting, running, and performance issues.
Engine Rebuilding:
Step-by-step procedures for top-end rebuilds, bottom-end overhauls, and component replacement.
Carburetor Overhaul:
Detailed instructions for cleaning, inspecting, and adjusting Mikuni carburetors used on this model.
Clutch Service:
Adjustment, cleaning, and replacement procedures for the drive and driven clutches.
Suspension Adjustment:
Alignment procedures and adjustment of suspension components for optimal handling.
Electrical Diagnostics:
Troubleshooting electrical faults using wiring diagrams and testing procedures.
Depth Of Information:
Comprehensive coverage suitable for both DIY enthusiasts and professional technicians.
Diagnostic Capabilities:
Includes detailed diagnostic flowcharts and specifications for pinpointing mechanical and electrical issues.
Rebuild Procedures:
Covers complete engine and component rebuilds with torque specifications and clearances.
Engine Type:
Liquid-cooled, 2-stroke, reed valve, twin-cylinder
Bore X Stroke:
73.0mm x 66.0mm
Carburetion:
Dual Mikuni VM34SS carburetors
Ignition:
CDI (Capacitor Discharge Ignition)
Lubrication:
Autolube oil injection system
Horsepower Estimate:
Approximately 70-75 hp (Estimate, exact figures may vary by year/tuning)
Fuel Type:
Unleaded gasoline (87 octane minimum)
Fuel Tank Capacity:
Approximately 5.0 gallons (19 liters)
Safety Standards:
N/A (Snowmobiles typically not rated by crash test agencies like cars; emphasis on operator safety and proper use.)
Throttle Safety:
Thumb throttle with safety lever/restraint.
Kill Switch:
Engine kill switch with tether cord (required for safe operation).
Headlight:
Halogen headlight for visibility.
Taillight:
Brake light and taillight for rear visibility.
Gauge Cluster:
Basic analog gauges for speedometer, tachometer, engine temperature, and fuel level.
None:
No advanced driver-assistance systems typical of modern vehicles.
None:
No modern connectivity features (Bluetooth, USB, etc.).
Oil Change:
Recommended every 2,500-3,000 miles or annually, whichever comes first.
Spark Plug Replacement:
Check and gap spark plugs every 1,000 miles; replace as needed (refer to manual for specific plug type and gap).
Drive Belt Inspection:
Inspect drive belt for wear and damage at 1,000-mile intervals; replace if more than 1/8" wear is present.
Chain Case Oil:
Change chain case oil every 2,000 miles or annually.
Engine Oil:
Yamalube 2-stroke oil (or equivalent API-TC rated synthetic 2-stroke oil).
Coolant:
50/50 mixture of ethylene glycol antifreeze and distilled water.
Chain Case Oil:
Yamalube Gear Oil 80W or equivalent hypoid gear oil.
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Carburetor Fouling:
Carburetors can be prone to fouling due to fuel quality or improper jetting.
Drive Clutch Wear:
Drive clutch weights and rollers can wear over time, affecting performance.
Suspension Bushings:
Rubber suspension bushings can degrade with age, leading to play and noise.
Exhaust Cracks:
Exhaust pipes can develop cracks over time due to heat cycles and vibration.
