1987 Polaris Cyclone 250 Manual

The 1987 Polaris Cyclone 250 is a high-performance snowmobile featuring a 244cc liquid-cooled twin-cylinder engine, advanced suspension system, and rugged design for optimal winter trail performance. This manual covers operation, maintenance, specifications, and troubleshooting for this classic snowmobile model.

1. Features at a Glance 2. Installation & Assembly 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Maintenance Procedures 7. Engine Operation 8. Safety Features 9. Care & Storage 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 244cc liquid-cooled twin-cylinder engine, Polaris Variable Speed (PVT) drive system, independent front suspension, slide rail rear suspension.

FeatureDescription
Engine Type244cc liquid-cooled twin-cylinder
Drive SystemPolaris Variable Speed (PVT)
Front SuspensionIndependent with hydraulic shocks
Rear SuspensionSlide rail with torsion springs
Brake SystemHydraulic disc brake
Track Length121 inches
Track Width15 inches
Fuel Capacity11.5 gallons
Oil InjectionAutomatic oil injection system
Starting SystemElectric start with pull cord backup

Installation & Assembly

Unpack and inspect all components. Assemble on level surface.

  1. Install handlebars: Align with mounting bracket and secure with provided bolts.
  2. Attach windshield: Position and secure with mounting hardware.
  3. Install skis: Mount to spindle assemblies and tighten securely.
  4. Connect battery: Attach positive then negative terminals.
  5. Add fluids: Fill with recommended 2-cycle oil and premium unleaded gasoline.

WARNING! Snowmobile is heavy; use proper lifting techniques. Ensure all fasteners are properly torqued.

First-Time Operation

Perform pre-ride inspection before starting engine.

  1. Check fluid levels: Ensure proper oil and fuel levels.
  2. Inspect track: Verify proper tension and condition.
  3. Test controls: Check throttle, brake, and steering operation.
  4. Start engine: Use electric start or pull cord if needed.
  5. Warm up: Allow engine to reach operating temperature before riding.

CAUTION! Always wear proper safety gear including helmet and protective clothing.

Specifications

Controls and Settings

Main controls located on handlebars and dashboard.

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

Dashboard: Key switch, electric start button, indicator lights (oil, temperature, battery).

Adjustments: Ski alignment, track tension, suspension pre-load, brake lever position, throttle free play.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

  1. Daily: Check fluid levels, inspect track and skis, test brakes.
  2. Weekly: Clean air filter, check drive belt, inspect spark plugs.
  3. Monthly: Change gear case oil, lubricate chassis, check suspension.
  4. Seasonal: Fog engine for storage, check carburetor adjustment.

Tip: Keep maintenance records for warranty and resale value.

Engine Operation

Proper engine operation ensures maximum performance and reliability.

  1. Starting: Turn key to ON, set choke, press start button or pull cord.
  2. Warm-up: Allow 2-3 minutes for engine to reach operating temperature.
  3. Operation: Use smooth throttle inputs, avoid prolonged idling.
  4. Shutdown: Allow brief cool-down before turning off.
  5. Break-in: Follow 10-hour break-in period with varied throttle positions.

WARNING! Never operate in enclosed spaces due to carbon monoxide risk.

Safety Features

Emergency stop switch: Kills engine instantly. Brake safety switch: Prevents throttle operation when brake is applied. Reflectors: Front, side, and rear for visibility.

Care & Storage

Clean thoroughly after each use. Store in dry, covered area.

CAUTION! Drain fuel or use stabilizer for long-term storage. Protect from moisture and rodents.

Regulatory Information

Manufactured by Polaris Industries. Meets applicable snowmobile safety standards. Always obey local laws and regulations regarding snowmobile operation. For support, contact Polaris customer service or authorized dealers.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startFuel, spark, compressionCheck fuel level, spark plugs, compression; verify choke operation.
Poor performanceCarburetion, exhaustClean carburetors, check exhaust system, verify fuel quality.
OverheatingCooling systemCheck coolant level, inspect water pump, clean cooling fins.
Electrical issuesBattery, connectionsTest battery voltage, check all electrical connections.
Track problemsTension, alignmentAdjust track tension, check alignment, inspect for damage.

Service: Contact authorized Polaris dealer for major repairs.

Parts: Use genuine Polaris parts for optimal performance.

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