Segment:
Performance-oriented trail snowmobile
Era:
Late 1980s performance snowmobile segment
Competitors:
Likely competed with similar displacement models from Ski-Doo, Arctic Cat, and Polaris of the same era.
Performance Focus:
Designed for spirited riding with a focus on power and handling.
Engine Type:
Known for its robust liquid-cooled twin-cylinder engine.
Target Audience:
DIY enthusiasts, mechanics, and owners looking to maintain or repair their Yamaha Exciter 570.
Value Proposition:
Provides comprehensive factory-level information essential for proper maintenance and repair, saving time and money.
Primary Coverage:
Complete service and repair for Yamaha Exciter 570 snowmobiles
Secondary Coverage:
Maintenance, troubleshooting, diagnostics, specifications, parts diagrams
Type:
Factory Service Manual / Repair Manual
Format:
PDF (Downloadable)
Engine:
Engine overhaul, teardown, rebuild, carburetor, fuel system, ignition, cooling system, exhaust system, lubrication
Drivetrain:
Drive train, primary reduction gear, clutch (primary and secondary), chaincase, track system, suspension, skis, steering
Electrical:
Ignition system, charging system (stator, magneto, regulator/rectifier), lighting, switches, starter system
Chassis Body:
Frame, body panels, plastics, seat, handlebars, controls, brakes, skis
Maintenance:
Scheduled maintenance, fluid changes (coolant, oil), lubrication, spark plug replacement, track tension adjustment
Repair Rebuild:
Complete engine teardown and rebuild, transmission overhaul, suspension repair, brake system service, electrical component repair
Troubleshooting:
Diagnostic procedures for common problems, error code interpretation (if applicable to this era), no spark diagnosis, starting issues, fuel delivery problems
Installation Adjustment:
Carburetor tuning and adjustment (main jet, pilot jet, mixture screw), clutch adjustment, throttle cable adjustment, brake adjustments
Depth:
Comprehensive, from basic maintenance to complete engine and chassis rebuilds
Diagnostics:
Detailed diagnostic flowcharts and troubleshooting guides
Illustrations:
Includes pictures, diagrams, and schematics
Specifications:
Detailed torque specifications, clearances, fluid capacities, and performance data
Engine Type:
2-stroke, liquid-cooled, parallel twin cylinder
Displacement:
561 cc (approximate based on model name)
Bore X Stroke:
Refer to manual for specific dimensions (e.g., common for this era might be around 73mm x 64mm but needs manual confirmation)
Compression Ratio:
Refer to manual for specific ratio.
Horsepower:
Likely in the range of 70-90 HP, dependent on specific tuning and year. Manual will provide exact figures.
Torque:
Refer to manual for peak torque figures and RPM.
Fuel Delivery:
Dual Carburetors (likely Mikuni VM series or similar)
Carburetor Size:
Refer to manual for specific carburetor model and venturi size (e.g., 34mm or 36mm likely).
Ignition System:
CDI (Capacitor Discharge Ignition)
Oil Type:
2-stroke pre-mix or oil injection system. Manual will specify Yamaha approved 2-stroke oil.
Cooling Method:
Liquid-cooled
Coolant Type:
Permanent antifreeze (ethylene glycol based) mixed with distilled water. Manual will specify ratio and type.
Type:
CVT (Continuously Variable Transmission) with primary and secondary clutches.
Gear Reduction:
Primary reduction gear system.
Reverse:
Likely equipped with a manual reverse mechanism or a separate reverse gear assembly.
Chaincase Oil Type:
Refer to manual for specific chaincase oil viscosity and type (e.g., gear oil or specialized lubricant).
Length:
Refer to manual for exact dimensions.
Width:
Refer to manual for exact dimensions.
Dry Weight:
Refer to manual for exact weight. Typically around 450-500 lbs for this class.
Fuel Capacity:
Refer to manual for tank capacity. Likely around 5-7 gallons.
Crash Safety:
N/A (Snowmobiles are not subject to traditional automotive crash ratings.)
Braking System:
Hydraulic disc brake, typically front and rear or a single rear caliper.
Lighting:
Headlight, taillight, and brake light for visibility.
Kill Switch:
Engine kill switch on handlebar, often with a tether.
Oil Change:
Refer to manual for specific interval for chaincase oil if applicable, and recommendations for 2-stroke oil usage.
Spark Plug Inspection:
Recommended inspection and replacement at specified intervals, typically every season or ~1000-2000 miles.
Track Tension:
Regular inspection and adjustment of track tension as per manual recommendations.
Carburetor Cleaning:
Recommended periodic cleaning and synchronization, especially if experiencing running issues.
Coolant Capacity:
Refer to manual for exact coolant capacity.
Brake Fluid Type:
Refer to manual for brake fluid specification (likely DOT 3 or DOT 4).
Carburetor Fouling:
Common for older 2-stroke carbureted engines, requiring regular cleaning and jetting checks.
Clutch Wear:
Clutch components (belts, rollers, buttons) can wear over time, affecting performance and requiring inspection/replacement.
Ignition Components:
CDI modules, coils, and stators can fail with age. Manual will guide diagnosis.
Suspension Bushings:
Rubber bushings in the suspension and steering can degrade, leading to looseness and poor handling.
Yamaha Motorsports:
Yamaha has a long and successful history in motorsports, including snowmobiles, motorcycles, and ATVs, known for engineering and reliability.
Exciter Line:
The Exciter line was a staple in Yamaha's snowmobile offerings, known for its balance of performance and comfort. The 570cc engine was a popular choice for this mid-displacement performance category.
Manufacturing Era:
Produced during a period of significant innovation and competition in the snowmobile industry.
