Polaris 2003 MSX owner manual Principles of Operation, Engine Break-in Procedure

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Principles of Operation

The engine is directly coupled to a driveshaft. When running, the driveshaft rotates the impeller. The impeller is positioned so that water is drawn up from beneath the watercraft. The water travels through the impeller and is accelerated, producing thrust to move the watercraft forward. Pulling or squeezing the throttle lever increases engine speed (watercraft speed).

Turning the handlebar pivots the jet pump nozzle (water outlet) which controls the watercraft’s direction. The throttle must be applied in order to turn the watercraft.

Engine Break-in Procedure

The break-in period for your new Polaris watercraft is defined as the time it takes to use the first full tank of gasoline. No single action on your part is as important as following the procedures for a proper break-in. Careful treatment of a new engine will result in more efficient performance and longer life for the engine. Perform the following procedures carefully.

OPERATION

CAUTION

Excessive heat build-up during the first three hours of operation will damage close-fitted engine parts. Do not operate at full throttle or high speeds for extended periods during the break-in period. Do not carry passengers during the break-in period.

Use of any oils other than those recommended by Polaris may cause serious engine damage. We recommend the use of Polaris synthetic 2-cycle oils for your Polaris watercraft.

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Contents MSX Page We’ve created a web site, just for YOU Page Welcome Polaris Recreational VehiclesPolaris Professional Series Workmobilest Table of Contents Do Your Part Your ResponsibilitiesAge Restrictions Maintenance RequirementsIdentification Numbers Signal Words and Symbols SafetySafety Decals Safety To Avoid Collisions Righting Capsized Boat Located on the engine water manifold Informational DecalsOperator Guidelines Operator SafetySafety Suit/Shoes/Gloves Safe Riding GearPersonal Floatation Device Eye ProtectionOverloading the Watercraft Fire SafetyProtective Apparel Weather and DarknessObstacles and Shallow Water Service and Maintenance Turning and AcceleratingPre-Operation Check Lifting the Watercraft Jet Pump Water Intake SafetyElectrical Shock Hazard Safe Riding PositionOperator Awareness Operator FitnessBoating Under the Influence To avoid hypothermia Vehicle ModificationsOperator Fatigue and Dehydration HypothermiaExhaust Outlet Reverse Gate Features and Controls911 Reverse Operation Handle Features and Controls Engine Components under seat Engine Components Accessible Functions New Generation Instrument NGIPrimary Functions Function Overview Instrument Operation Display ModeCheck Engine Display WarningsRPM Limiter Accessories Standard EquipmentOptional Equipment Emissions EPA Emissions RegulationsCalifornia Star Labels One Star Low Emission Two Stars Very Low EmissionThree Stars Ultra Low Emission Pre-Operation Inspection OperationWhat To Do Fuel Refueling Oil Ride Plate Impeller Drive Shaft Jet Pump IntakeSteering ThrottleEngine and Storage Compartments Loose Parts SeatFire Extinguisher Battery Hull Drain Plugs and BilgeRiding Gear Switches/Buttons Principles of Operation Engine Break-in ProcedureOperation Give-way Vessel Navigational RulesRight-of-way and Give-way Stand-on VesselRule Encountering VesselsMeeting Vessels Crossing Paths Overtaking VesselsFishing Vessel Right-of-Way Non-Motorized CraftAvoid Collisions Reading Buoys and MarkersLaunch Ramp Etiquette Stopping the Engine Launching the WatercraftStarting the Engine Before Starting the EngineIf the Engine Doesn’t Start Boarding and Starting in Deep Water Operator Only Boarding the WatercraftBoarding With a Passenger Turning the Watercraft Reverse OperationStopping the Watercraft Beaching the Watercraft Operating in Rough Conditions Towing a Disabled Watercraft Righting a Capsized Watercraft Operating With Passengers Daily Care Post Operation MaintenanceOperation Temporary Storage Transporting The Watercraft Submerged Waterlogged Engine Anti-Corrosion TreatmentEngine Water Removal Procedure General Maintenance Maintenance and LubricationMaintenance Schedule Key Periodic Maintenance ScheduleDescription Fuel System Hull / Deck / Steering / Controls Drive Line Steering Cable Joints and Inner WireLubrication Throttle CableSteering Handle Pivot Shaft Seat Latch And Hooks Steering Nozzle Pivot ShaftThrottle Body And Oil Injection Pump Electrical ConnectionsSpark Plugs Maintenance and Lubrication Hull and Deck Care Polaris Nature Oil Synthetic Lubricant OilPolaris VES II Synthetic Lubricant Polaris Premium Gold Synthetic LubricantSteering Cable Inspection FusesThrottle Cable Inspection Antidote BatteryBattery Maintenance and Charging Replenishing Battery FluidBattery Removal Battery Charging Battery Storage Battery InstallationJet Pump Water Inlet Screen Salt Water and Unclean Water CareCooling System Flushing Engine and Exhaust System Draining Extended StorageWatercraft Engine Fogging Procedure Cleaning Lubrication Engine Troubleshooting Engine Doesn’t Turn OverEngine Turns Over But Doesn’t Start Engine Runs Irregularly, Stalls or Misfires Possible Weak Spark Cause SolutionEngine Backfires Engine OverheatsEngine Pings or Knocks Engine Loses PowerUnusual Noise or Vibration From Propulsion System Engine RPM is Too High With Limited SpeedOil and Lubricants Polaris ProductsCapacities / Dimensions SpecificationsPropulsion Obtaining Service and Warranty Assistance WarrantyWarranty Policy Engine Oil HOW to Obtain Warranty ServicePolaris Watercraft Engines California Emission Control System Limited WarrantyOWNER’S Warranty Responsibilities 109 Emissions Index111