1988 Yamaha Exciter 570 Manual

The 1988 Yamaha Exciter 570 is a high-performance snowmobile featuring a 570cc two-stroke engine, oil injection system, slide rail suspension, and electric start. This manual covers operation, maintenance, specifications, and troubleshooting for the Exciter 570 model year 1988. Below are key sections for safety, features, operation, maintenance, specifications, and troubleshooting.

Features at a Glance

Key components: 570cc two-stroke engine, Mikuni carburetor, oil injection system, electric start, slide rail suspension, rubber track.

Pre-Operation Checklist

Before each ride, perform these safety checks:

1. Check fuel level and oil reservoir
2. Inspect track condition and tension
3. Test brakes and throttle operation
4. Check ski alignment and suspension
5. Verify headlights and taillights function
6. Ensure emergency stop switch works

WARNING! Never operate without proper safety checks. Always wear helmet and protective gear.

Operation Instructions

Starting and operating procedures:

1. Starting: Turn key to ON, set choke, press starter button
2. Warm-up: Allow 2-3 minutes for engine warm-up in cold conditions
3. Driving: Use throttle gradually, avoid sudden acceleration
4. Braking: Apply brake smoothly, avoid locking track
5. Stopping: Turn key to OFF, engage parking brake on inclines

CAUTION! Always operate in well-ventilated areas. Carbon monoxide poisoning can occur in enclosed spaces.

Specifications

• Engine: 570cc two-stroke, fan-cooled
• Bore x Stroke: 72mm x 70mm
• Compression Ratio: 6.6:1
• Fuel System: Mikuni VM34SS carburetor
• Ignition: CDI electronic
• Starting: Electric with backup recoil
• Track: 15" x 121" rubber
• Suspension: Front double wishbone, rear slide rail
• Brakes: Mechanical disc
• Fuel Capacity: 10.6 gallons
• Oil Capacity: 3.2 quarts

Controls and Instrument Panel

Main controls: Handlebar controls, instrument cluster, key switch.

Handlebar Controls: Throttle lever, brake lever, emergency stop switch, headlight switch.

Instrument Panel: Speedometer, tachometer, fuel gauge, temperature warning light, oil warning light. Key Switch: OFF/ON/START positions. Emergency stop: Red button kills engine instantly.

Maintenance Schedule

Regular maintenance intervals:

1. Every ride: Check fuel, oil, track, brakes
2. Every 500 miles: Change spark plugs, check carburetor
3. Every 1000 miles: Change gear oil, inspect suspension
4. Every 2000 miles: Replace drive belt, check clutch
5. Seasonal: Full inspection and lubrication

Tip: Keep maintenance records for warranty and resale value.

Engine Maintenance

Engine service procedures:

1. Spark plugs: NGK BR9ES, gap 0.024-0.028 inch
2. Carburetor adjustment: Pilot screw 1.5 turns out
3. Oil injection: Check reservoir, use Yamalube 2-stroke oil
4. Compression test: Should read 120-140 psi
5. Cooling system: Inspect fan and cooling fins

WARNING! Engine components get extremely hot. Allow cooling before servicing.

Suspension and Track

Suspension maintenance and adjustment:

1. Track tension: Adjust to 1-1.5 inch sag
2. Ski alignment: Parallel within 1/8 inch
3. Slide rails: Lubricate with graphite spray
4. Front suspension: Check A-arms and bushings
5. Rear suspension: Inspect springs and shocks

Storage Procedures

End-of-season storage preparation:

1. Stabilize fuel system: Add fuel stabilizer, run engine
2. Fog engine: Spray fogging oil into carburetor
3. Battery: Remove and store fully charged
4. Track: Lift off ground to prevent flat spots
5. Cover: Use breathable cover for storage

CAUTION! Store in dry, well-ventilated area away from open flames.

Safety Information

Always wear helmet, eye protection, and proper clothing. Never ride alone. Avoid frozen waterways. Check weather conditions. Carry emergency kit. Know local laws and regulations.

Troubleshooting

Service: Contact authorized Yamaha dealer for major repairs

Parts: Use genuine Yamaha parts for optimal performance