Polaris 2003 MSX owner manual Engine Troubleshooting, Engine Doesn’t Turn Over

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ENGINE TROUBLESHOOTING

Engine Doesn’t Turn Over

	Possible Cause	Solution
	Possible Cause	Solution

	Blown fuse	Replace the fuse

	Low battery voltage	Recharge battery to 12.5 VDC

	Loose battery connections or ground	Check all connections and tighten as needed

	Hydrolock (water in engine)	See your Polaris dealer

	Loose starter relay (solenoid) connections	Check all connections and tighten

	Lanyard lock plate not in place	Install lock plate under shut-off switch
	Engine Turns Over But Doesn’t Start

	Possible Cause	Solution
	Possible Cause	Solution

	Out of fuel	Refuel

	Old or non-recommended fuel	Replace with new fuel

	Fouled or defective spark plugs	Inspect plugs, replace as needed

	Crankcase filled with water or fuel	See your Polaris dealer

	Clogged fuel filter	Replace the filter

	Low battery voltage	Recharge battery to 12.5 VDC

	Mechanical failure	See your Polaris dealer

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Contents MSX Page We’ve created a web site, just for YOU Page Polaris Professional Series Workmobilest WelcomePolaris Recreational Vehicles Table of Contents Your Responsibilities Do Your PartMaintenance Requirements Age RestrictionsIdentification Numbers Safety Signal Words and SymbolsSafety Decals Safety To Avoid Collisions Righting Capsized Boat Informational Decals Located on the engine water manifoldOperator Safety Operator GuidelinesSafety Eye Protection Safe Riding GearPersonal Floatation Device Suit/Shoes/GlovesFire Safety Overloading the WatercraftWeather and Darkness Protective ApparelObstacles and Shallow Water Pre-Operation Check Service and MaintenanceTurning and Accelerating Safe Riding Position Jet Pump Water Intake SafetyElectrical Shock Hazard Lifting the WatercraftBoating Under the Influence Operator AwarenessOperator Fitness Hypothermia Vehicle ModificationsOperator Fatigue and Dehydration To avoid hypothermiaFeatures and Controls Exhaust Outlet Reverse Gate911 Reverse Operation Handle Features and Controls Engine Components under seat Engine Components Primary Functions Accessible FunctionsNew Generation Instrument NGI Function Overview Display Mode Instrument OperationDisplay Warnings Check EngineRPM Limiter Optional Equipment AccessoriesStandard Equipment California Star Labels EmissionsEPA Emissions Regulations Three Stars Ultra Low Emission One Star Low EmissionTwo Stars Very Low Emission Operation Pre-Operation InspectionWhat To Do Fuel Refueling Oil Jet Pump Intake Ride Plate Impeller Drive ShaftEngine and Storage Compartments SteeringThrottle Fire Extinguisher Loose PartsSeat Battery Riding Gear HullDrain Plugs and Bilge Switches/Buttons Engine Break-in Procedure Principles of OperationOperation Stand-on Vessel Navigational RulesRight-of-way and Give-way Give-way VesselMeeting Vessels RuleEncountering Vessels Overtaking Vessels Crossing PathsNon-Motorized Craft Fishing Vessel Right-of-WayLaunch Ramp Etiquette Avoid CollisionsReading Buoys and Markers Launching the Watercraft Stopping the EngineBefore Starting the Engine Starting the EngineIf the Engine Doesn’t Start Boarding the Watercraft Boarding and Starting in Deep Water Operator OnlyBoarding With a Passenger Reverse Operation Turning the WatercraftStopping the Watercraft Beaching the Watercraft Operating in Rough Conditions Towing a Disabled Watercraft Righting a Capsized Watercraft Operating With Passengers Post Operation Maintenance Daily CareOperation Temporary Storage Transporting The Watercraft Anti-Corrosion Treatment Submerged Waterlogged EngineEngine Water Removal Procedure Maintenance and Lubrication General MaintenancePeriodic Maintenance Schedule Maintenance Schedule KeyDescription Fuel System Hull / Deck / Steering / Controls Throttle Cable Steering Cable Joints and Inner WireLubrication Drive LineElectrical Connections Seat Latch And Hooks Steering Nozzle Pivot ShaftThrottle Body And Oil Injection Pump Steering Handle Pivot ShaftSpark Plugs Maintenance and Lubrication Hull and Deck Care Polaris Premium Gold Synthetic Lubricant OilPolaris VES II Synthetic Lubricant Polaris Nature Oil Synthetic LubricantThrottle Cable Inspection Steering Cable InspectionFuses Replenishing Battery Fluid BatteryBattery Maintenance and Charging AntidoteBattery Removal Battery Charging Battery Installation Battery StorageSalt Water and Unclean Water Care Jet Pump Water Inlet ScreenCooling System Flushing Extended Storage Engine and Exhaust System DrainingWatercraft Engine Fogging Procedure Cleaning Lubrication Engine Turns Over But Doesn’t Start Engine TroubleshootingEngine Doesn’t Turn Over Possible Weak Spark Cause Solution Engine Runs Irregularly, Stalls or MisfiresEngine Overheats Engine BackfiresEngine Loses Power Engine Pings or KnocksEngine RPM is Too High With Limited Speed Unusual Noise or Vibration From Propulsion SystemPolaris Products Oil and LubricantsSpecifications Capacities / DimensionsPropulsion Warranty Obtaining Service and Warranty AssistanceWarranty Policy HOW to Obtain Warranty Service Engine OilCalifornia Emission Control System Limited Warranty Polaris Watercraft EnginesOWNER’S Warranty Responsibilities 109 Index Emissions111