Polaris Sportsman 850 XP EPS - Manual

3 TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Features and Controls . . . . . . . . . . . . . . . . . . . 24Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Emis...

4 INTRODUCTION The following signal words and symbols appear throughout this manual and on your vehicle. Your safety is involved when these words and sym-bols are used. Become familiar with their meanings before reading the manual. The safety alert symbol indicates a potential personal injury hazard...

5 INTRODUCTION Failure to heed the warnings and safety precautions contained in this manual can result in severe injury or death. A POLARIS ATV is not a toy and can be hazardous to operate. This vehicle handles differently than other vehicles, such as motorcycles and cars. A collision or rollover ca...

6 INTRODUCTION Vehicle Identification Numbers Record your vehicle's identification numbers and key number in the spaces provided. Remove the spare key and store it in a safe place. An ignition key can be duplicated only by ordering a POLARIS key blank (using your key number) and mating it with one o...

7 SAFETY Safety Training ATV safety training is a top priority for POLARIS. POLARIS strongly encourages you and any family members who will be riding the ATV to take a training course. If you purchased a new POLARIS ATV in the United States, your dealer provided information about the authorized ATV ...

8 SAFETY Safe Riding Gear Always wear appropriate clothing when riding an ATV. Wear protective clothing for comfort and to reduce the chance of injury. Helmet Wearing a helmet can prevent a severe head injury. Whenever riding a POLARIS vehicle, always wear a helmet that meets or exceeds estab-lished...

9 SAFETY Safe Riding Gear Eye Protection Do not depend on eyeglasses or sunglasses for eye protection. When-ever riding a POLARIS vehicle, always wear shatterproof goggles or use a shatterproof helmet face shield. POLARIS recommends wearing approved Personal Protective Equipment (PPE) bearing markin...

10 SAFETY Safety Warnings Failure to operate the ATV properly can result in a collision, loss of control, accident or overturn, which may result in serious injury or death. Heed all safety warnings outlined in this section of the owner’s manual. See the OPERATION section of the owner’s manual for pr...

11 SAFETY Safety Warnings Handling Gasoline Gasoline is highly flammable and explosive under certain conditions. • Always exercise extreme caution whenever handling gasoline.• Always refuel with the engine stopped, and outdoors or in a well ventilated area. • Do not smoke or allow open flames or spa...

12 SAFETY Safety Warnings Carrying a Passenger Carrying a passenger greatly reduces the operator's ability to balance and control the ATV, which may result in an accident or overturn.Never carry a passenger on this ATV. Operating on Pavement Operating an ATV on paved surfaces (including sidewalks, p...

13 SAFETY Safety Warnings Physical Control of the ATV Removing a hand from the handlebars or feet from the footrests during operation can reduce your ability to control the vehicle or cause loss of balance and ejection from the ATV. If the operator's foot is not firmly planted on the footrest, it co...

14 SAFETY Safety Warnings Descending Hills Improperly Improperly descending a hill could cause loss of control or overturn.• Always follow proper procedures for travel- ing down hills as described in the owner's manual. NOTE: A special technique is required when braking while traveling down-hill. Se...

15 SAFETY Safety Warnings Stalling While Climbing a Hill Stalling, rolling backwards or improperly dismounting while climbing a hill could cause an overturn.• Always maintain a steady speed when climbing a hill. • Always move the 4X4 switch to ADC 4X4 before ascending or descending a hill. See page ...

16 SAFETY Safety Warnings Operating in Unfamiliar Terrain Failure to use extra caution when operating on unfamiliar terrain could result in an accident or overturn.Unfamiliar terrain may contain hidden rocks, bumps, or holes that could cause loss of control or overturn.Travel slowly and use extra ca...

17 SAFETY Safety Warnings Operating Over Obstacles Improperly operating over obstacles could cause loss of control or overturn.Before operating in a new area, check for obstacles. Avoid operating over large obstacles such as rocks and fallen trees. If unavoidable, use extreme caution and always foll...

18 SAFETY Safety Warnings Improper Cargo Loading Overloading the ATV or carrying/towing cargo improperly may cause changes in handling, which could cause loss of control or an accident.• Never exceed the stated load capacity for this ATV.• Cargo should be properly distributed and securely attached.•...

19 SAFETY Safety Warnings Operating a Damaged ATV Operating a damaged ATV can result in an accident. After any overturn or accident, have a qualified service dealer inspect the entire machine for possible damage, including (but not limited to) brakes, throttle and steering systems. Physical Skills S...

20 SAFETY Safety Labels and Locations Warning labels have been placed on the vehicle for your protection. Read and follow the instructions on each label carefully. If any of the labels shown in this manual differ from the labels on your vehicle, always read and follow the instructions of the labels ...

21 SAFETY Safety Labels and Locations Discretionary Warning WARNING • Never operate this ATV on HILLS steeper than 25 degrees 25°. To pre- vent overturn on hilly terrain, use throttle and brakes gradually, and shift weight uphill. • REVERSE operation can be dangerous even at low speeds. Steering bec...

22 SAFETY Safety Labels and Locations “No Passenger” Warning WARNING NEVER ride as a passenger.Passengers can cause a loss of control, resulting in SEVERE INJURY or DEATH. 7175378 Tire Pressure/Load Warning WARNING Improper tire pressure or overloading can cause loss of control. Loss of control can ...

23 SAFETY Safety Labels and Locations Clutch Cover Warning WARNING • Moving parts hazard under belt-clutch guard. To prevent serious injury, do not operate vehicle with guard removed. • Do not modify engine or clutch. Doing so can cause part failure, possible imbalance, and excessive engine RPM, whi...

24 FEATURES AND CONTROLS Switches Mode/Reverse Override Switch This vehicle is equipped with a reverse speed limiter system. To gain additional wheel speed while backing, release the throttle and depress the override button. WARNING! Pressing the override button while the throttle is open can cause ...

25 FEATURES AND CONTROLS Switches Engine Stop Switch Move the stop switch either left or right to the OFF position to stop the engine quickly. Move the stop switch to the RUN position before attempt-ing to start the engine. The engine will not start or run when the switch is off. Both the main switc...

26 FEATURES AND CONTROLS Throttle Lever Operating an ATV with sticking or improperly operating throttle controls could cause an accident. Never start or operate an ATV that has a sticking or improperly operating throttle. Always contact your dealer for service before operating the vehicle.Failure to...

27 FEATURES AND CONTROLS Brake Lever Operating the ATV with a spongy brake lever can result in loss of braking, which could cause an accident. Never operate the ATV with a spongy-feeling brake lever. Always contact your dealer for service before operating the vehicle. Squeeze the brake lever toward ...

28 FEATURES AND CONTROLS Master Cylinder/Brake Fluid An over-full master cylinder may cause brake drag or brake lock-up, which could result in an accident. Maintain brake fluid at the recommended level. Do not overfill.Never store or use a partial bottle of brake fluid. Brake fluid is hygroscopic, m...

29 FEATURES AND CONTROLS Parking Brake Locking the Parking Brake 1. Place the transmission in PARK. 2. Squeeze and release the brake lever two or three times, then squeeze and hold. 3. Push the parking brake lock forward to engage the lock. 4. Release the brake lever. 5. To release the parking brake...

30 FEATURES AND CONTROLS Auxiliary Foot Brake Never back down a hill. Applying the auxiliary brake when backing down a hill may cause rear tipover, which could result in serious injury or death. Use caution when applying the auxiliary brake. Do not aggressively apply the auxiliary brake when going f...

31 FEATURES AND CONTROLS Electronic Power Steering (EPS) Electronic power steering (EPS) engages when the ignition key is turned to the ON position. EPS remains engaged whether the vehicle is moving or idle. See page 35 for EPS Warning Indicator information. Fuel Tank Always refuel with the engine s...

32 FEATURES AND CONTROLS All Wheel Drive System The All Wheel Drive system is controlled by the 4X4 switch. ADC 4X4 Mode When the switch is on ADC 4X4, the ADC system allows engine braking to all four wheels when the vehicle descends a hill or incline. Always move the 4X4 switch to ADC 4X4 before as...

33 FEATURES AND CONTROLS All Wheel Drive System Engaging 4X4 The 4X4 switch may be turned on or off while the vehicle is moving. Initially, the vehicle's electronic system will not enable 4X4 until the engine RPM is below 3100. Once enabled, 4X4 remains enabled until the 4X4 switch is turned off. If...

34 FEATURES AND CONTROLS Instrument Cluster NOTICE: High water pressure may damage ATV components. Wash the ATV by hand or with a garden hose using mild soap. Certain products, including insect repellents and chemicals, will damage the speedometer lens and other plastic surfaces. Do not use alcohol ...

35 FEATURES AND CONTROLS Instrument Cluster Digital/Analog Gauge Indicator Lamps Lamp Indicates Condition VehicleSpeed When standard mode is selected, speed displays in miles per hour. When metric mode is selected, speed displays in kilometers per hour. Over Temperature This lamp flashes to indicate...

36 FEATURES AND CONTROLS Instrument Cluster Digital/Analog Gauge Rider Information Center The rider information center is located in the instrument cluster. All seg-ments will light up for one second at start-up. If the instrument cluster fails to illuminate, a battery over-voltage may have occurred...

37 FEATURES AND CONTROLS Instrument Cluster Digital/Analog Gauge Rider Information Center 1. Gear Display - This area displays gear shifter position. H = High GearL = Low GearN = NeutralR = Reverse GearP = Park-- = Gear Signal Error (or shifter between gears) 2. Fuel Gauge Display - The segments of ...

38 FEATURES AND CONTROLS Instrument Cluster Digital/Analog Gauge Rider Information Center The reverse override button acts as the MODE button when pressed and released quickly. The transmission cannot be in reverse when using the override button as a MODE button. This feature does not contain a vehi...

39 FEATURES AND CONTROLS Instrument Cluster Digital/Analog Gauge Rider Information Center Clock Mode Tip: The clock must be reset any time the battery has been disconnected or dis-charged. 1. Turn the key to the ON position. Use the MODE button to toggle to the odometer display. 2. Press and hold th...

40 FEATURES AND CONTROLS Instrument Cluster Digital/Analog Gauge Rider Information Center Programmable Service Interval When the hours of engine operation equal the programmed service interval setting, the wrench icon will flash for 5 seconds each time the engine is started. When this feature is ena...

42 FEATURES AND CONTROLS Instrument Cluster Multi-Function Display (MFD) Gauge (EPS Models) The rider information center is located in the instrument cluster. All segments will light up for one second at start-up. If the instrument cluster fails to illuminate, a battery over-volt-age may have occurr...

44 FEATURES AND CONTROLS Instrument Cluster Multi-Function Display (MFD) Gauge (EPS Models) Use the MODE button to toggle through the speed display options. Use the SELECT button (SEL) to toggle through the information area options. MODE and SELECT button opera-tion is locked out at speeds above app...

46 FEATURES AND CONTROLS Instrument Cluster Multi-Function Display (MFD) Gauge (EPS Models) Programmable Service Interval When the hours of engine operation equal the programmed service interval setting, the wrench icon will flash for 5 seconds each time the engine is started. When this feature is e...

47 FEATURES AND CONTROLS Instrument Cluster Multi-Function Display (MFD) Gauge (EPS Models) Diagnostic Display Mode The EFI diagnostic display mode is for informational purposes only. Please see your Polaris dealer for all major repairs. The diagnostic mode is accessible only when the check engine w...

48 FEATURES AND CONTROLS Instrument Cluster Diagnostic Display Code Definitions Open Load: There is a break in the wires that lead to the item listed in the chart (injector, fuel pump, etc.), or the item has failed. Short-to-Ground: The wire is shorted to ground between the electronic control unit a...

52 FEATURES AND CONTROLS Front Rack/Compartment Release the front rack latches and remove the rack to gain access to the front compart-ment. To reinstall the rack, hold the rack as shown in the illustration. Position the front edge in the tabs, then push the rack downward and secure the latches. Acc...

53 OPERATION Failure to operate the ATV properly can result in a collision, loss of control, accident or overturn, which may result in serious injury or death. Read and understand all safety warnings outlined in the safety section of this owner’s manual. Break-In Period The break-in period for your ...

54 OPERATION Pre-Ride Checklist Failure to inspect and verify that the ATV is in safe operating condition before operating increases the risk of an accident. Always inspect the ATV before each use to make sure it's in safe operating condition. Item Remarks Page Brake system/lever travel Ensure prope...

55 OPERATION Safe Operation Practices 1. Complete the recommended safety training before operating this vehicle. See page 7. 2. Do not allow anyone under 16 years of age to operate this vehicle. Do not allow anyone with cognitive or physical disabilities to oper-ate this vehicle. 3. Never carry a pa...

56 OPERATION Know Your Riding Area/Tread Lightly Familiarize yourself with all laws and regulations concerning the opera-tion of this off-road vehicle in your area. Respect the environment in which you ride. Find out where the designated riding areas are by con-tacting your POLARIS dealer, a local r...

57 OPERATION Starting the Engine 1. Position the vehicle on a level surface outdoors or in a well-venti- lated area. 2. Place the transmission in PARK. 3. Lock the parking brake. Tip: The starter interlock will prevent the engine from starting if the transmission is in gear and the brake is not enga...

58 OPERATION Driving Procedures 1. Wear a helmet and eye protection. 2. Sit upright with both feet on the footrests and both hands on the handlebars. 3. Start the engine and allow it to warm up. 4. Shift the transmission into gear. 5. Check your surroundings and determine your path of travel. 6. Rel...

59 OPERATION Turning the Vehicle Your ATV is equipped with a solid rear axle, which drives both rear wheels equally at all times. This means that the wheel on the outside of the turn must travel a greater distance than the inside wheel when turning and the inside tire must slip traction slightly. To...

60 OPERATION Driving on Slippery Surfaces Whenever riding on slippery surfaces such as wet trails or loose gravel, or during freezing weather, follow these precautions: 1. Do not operate on excessively rough, slippery or loose terrain. 2. Slow down when entering slippery areas. 3. Engage 4X4 before ...

61 OPERATION Driving Uphill Braking and handling are greatly affected when operating in hilly ter-rain. Improper procedure could cause loss of control or overturn. When-ever traveling uphill, follow these precautions: 1. Always move the 4X4 switch to ADC 4X4 before ascending or descending a hill. Se...

62 OPERATION Driving on a Sidehill (Sidehilling) Driving on a sidehill is not recommended. Improper procedure could cause loss of control or overturn. Avoid crossing the side of any hill unless absolutely necessary. If crossing a sidehill is unavoidable , follow these precautions: 1. Slow down! 2. S...

63 OPERATION Driving Downhill When driving downhill, follow these precautions: 1. Always move the 4X4 switch to ADC 4X4 before ascending or descending a hill. See page 33. 2. Avoid steep hills (25° maximum). 3. Shift body weight uphill. 4. Drive straight downhill. 5. Slow down. Excessive speed when ...

64 OPERATION Turning Around on a Hill (K-Turn) If the vehicle stalls while climbing a hill, never back it down the hill! Use the K-turn to turn around. 1. Stop and lock the parking brake while keeping body weight uphill. 2. Always move the 4X4 switch to ADC 4X4 before ascending or descending a hill....

65 OPERATION Driving Through Water Your ATV can operate through water with a maximum recom-mended depth equal to the bot-tom of the footrests. Follow these precautions when operat-ing through water: 1. Determine water depths and current before entering water. 2. Choose a crossing where both banks ha...

66 OPERATION Driving Over Obstacles Follow these precautions when operating over obstacles: 1. Always check for obstacles before operating in a new area. 2. Look ahead and learn to read the terrain. Be constantly alert for haz- ards such as logs, rocks and low hanging branches. 3. Travel slowly and ...

67 OPERATION Driving in Reverse Follow these precautions when operating in reverse: 1. Always check for obstacles or people behind the vehicle. 2. Always avoid backing downhill. 3. Back slowly. 4. Apply the brakes lightly for stopping. 5. Avoid turning at sharp angles. 6. Never open the throttle sud...

68 OPERATION Hauling Cargo Overloading the vehicle or carrying or towing cargo improperly can alter vehicle handling and may cause loss of control or brake instability, which can result in serious injury or death. Always follow these precautions when hauling cargo:REDUCE SPEED AND ALLOW GREATER DIST...

69 OPERATION Hauling Cargo 1. Never exceed the weight capacities specified for your ATV on warning labels and in the specifica-tions section of this manual. 2. Cargo weight should be evenly distributed (1/3 on the front rack and 2/3 on the rear rack) and mounted as low as possible. 3. When operating...

70 OPERATION Hauling Cargo Towing Loads Always attach a towed load to the hitch point. Remove the hitch from the ATV when not towing a trailer. If towing a load, reduce rear rack cargo weight by the amount of tongue weight. • The combination of rear rack cargo weight and tongue weight must not excee...

71 EMISSION CONTROL SYSTEMS Noise Emission Control System Do not modify the engine, intake or exhaust components, as doing so may affect compliance with U.S.A. EPA noise control requirements (40 CFR 205) and local noise level requirements. Operation on Public Lands in the U.S.A. Your POLARIS vehicle...

72 MAINTENANCE Periodic Maintenance Chart Careful periodic maintenance will help keep your vehicle in safe, reli-able condition. Inspect, clean, lubricate, adjust and replace parts as nec-essary. When inspection reveals the need for replacement parts, use genuine POLARIS parts available from your PO...

73 MAINTENANCE Periodic Maintenance Chart Maintenance Chart Key WARNING! Improperly performing the procedures marked with a “D” could result in component failure and lead to serious injury or death. Have an authorized POLARIS dealer perform these services. Perform all services at whichever maintenan...

76 MAINTENANCE Lubrication Guide Check and lubricate all components at the intervals outlined in the Peri-odic Maintenance Chart beginning on page 73. Items not listed in the chart should be lubricated at the General Lubrication interval. The a-arms and lower control arms are lubricated at the facto...

77 MAINTENANCE Engine Oil Oil Recommendations POLARIS recommends the use of POLARIS PS-4 PLUS Performance Synthetic 2W-50 4-cycle oil or a similar oil for this engine. See the table on page 76 for fluid recommendations, capacities and plug torques. Oil may need to be changed more frequently if POLAR...

78 MAINTENANCE Engine Oil Oil and Filter Change See the table on page 76 for fluid recommendations, capacities and plug torques. Always change the oil and filter at the intervals outlined in the Periodic Maintenance Chart beginning on page 73. Always change the oil filter whenever changing oil. 1. P...

80 MAINTENANCE Transmission Oil POLARIS recommends the use of POLARIS AGL PLUS Transmission Fluid for this transmission. See the table on page 76 for fluid recom-mendations, capacities and plug torques. Always check and change the transmission oil at the intervals outlined in the Periodic Maintenanc...

81 MAINTENANCE Front Gearcase (Demand Drive) Fluid See the table on page 76 for fluid recommendations, capacities and plug torques. Always check and change the demand drive fluid at the inter-vals outlined in the Periodic Maintenance Chart beginning on page 73. See page 125 for the part numbers of P...

82 MAINTENANCE Active Descent Control (ADC) Fluid Check and change the ADC fluid level at the intervals outlined in the Periodic Maintenance Chart beginning on page 73. We recommend the use of POLARIS Demand Drive Plus Fluid for the ADC unit. Maintain the fluid level between the minimum and maximum ...

83 MAINTENANCE Active Descent Control (ADC) Fluid Fluid Change 1. Position the vehicle on a level surface. Before performing the fluid change, allow the vehicle to sit for at least 30 minutes. 2. Thoroughly clean the areas around and on the ADC reservoir and bleeder valves (one on each side of the d...

84 MAINTENANCE Rear Gearcase Oil See the table on page 76 for fluid recommendations, capacities and plug torques. Always check and change the rear gearcase oil at the intervals outlined in the Periodic Maintenance Chart beginning on page 73. See page 125 for the part numbers of POLARIS products. The...

86 MAINTENANCE Power Steering Unit If your model is equipped with power steering, frequently clean the areas around and on the power steering unit to allow proper cooling. Clean these areas thoroughly. Steering Assembly The steering assembly of the ATV should be checked periodically for loose nuts a...

87 MAINTENANCE Cooling System Recovery Bottle Coolant The recovery bottle fluid level can be viewed from inside the front right wheel well. Access the recovery bottle cap under the front storage com-partment. 1. View the fluid level in the bottle. 2. If the level is low, remove the front rack. 3. Re...

88 MAINTENANCE Cooling System Radiator Coolant To ensure that the coolant maintains its ability to protect the engine, POLARIS recommends that you drain the system completely every two years and add a fresh mixture of antifreeze and water. Replace the coolant any time the cooling system has been dra...

89 MAINTENANCE Brakes Hand Brake The front and rear brakes are hydraulic disc brakes, activated by moving the single brake lever toward the handlebar. These brakes are self-adjusting. Under normal operation, the diaphragm extends into the reservoir as fluid level drops. If the fluid level is low and...

90 MAINTENANCE Toe Alignment Use the following procedure to check the toe alignment of the vehicle. The recommended toe alignment is 1/4-1/2 inch (6-12 mm) toe out. WARNING! Severe injury or death can result from improper toe alignment and adjustment. Do not attempt to adjust tie rod alignment. All ...

91 MAINTENANCE Seat Removal 1. Grasp one side of the seat near the rear edge. 2. Pull upward abruptly to disengage the under-seat fasteners. 3. Remove the seat. Side Panel/Footwell Removal Remove the seat before removing a side panel. To remove a side panel or footwell, remove the fasteners securing...

92 MAINTENANCE Tires Operating your ATV with worn tires, improperly inflated tires, non-standard tires or improperly installed tires will affect vehicle handling and could cause an accident resulting in serious injury or death. Always follow all tire maintenance procedures as outlined in this manual...

93 MAINTENANCE Tires Front Wheel Hub Tightening Front wheel bearing tightness and spindle nut retention are critical com-ponent operations. All service must be performed by your authorized POLARIS dealer. Wheel Removal 1. Stop the engine. 2. Place the transmission in PARK. 3. Lock the parking brake....

94 MAINTENANCE Tires Wheel Installation 1. Place the transmission in PARK. 2. Lock the parking brake. 3. Place the wheel on the hub with the valve stem toward the outside and rotation arrows on the tire pointing toward forward rotation (if equipped). 4. Install the wheel nuts and finger-tighten them...

95 MAINTENANCE Air Filter 1. Remove the seat. 2. Remove the air box cover strap, and remove the air box cover. 3. Remove the filter. 4. Remove the fabric type pre- filter from the main filter. Wash the pre-filter in soapy water, then rinse and let dry. 5. Reinstall the pre-filter over the main filte...

96 MAINTENANCE Fuse Replacement If the engine stops or will not start, or if you experience other electrical failures, a fuse may need replacement. Locate and correct any short cir-cuits that may have caused the blown fuse, then replace the fuse. Spare fuses are provided in the fuse box. 1. Remove t...

97 MAINTENANCE Lights Poor lighting can result in reduced visibility when driving. Headlight and taillight lenses become dirty during normal operation. Clean lights frequently and replace burned out lamps promptly. Always make sure lights are adjusted properly for best visibility. Headlight Lamp Rep...

98 MAINTENANCE Lights High Beam Adjustment The headlight beam can be adjusted slightly upward or downward. Use the following procedure to make the adjustment. 1. Position the vehicle on a level surface with the headlight approxi- mately 25 ft. (7.6 m) from a wall. Place the transmission in PARK. 2. ...

99 MAINTENANCE Lights Low Beam Adjustment The low beam can be adjusted slightly upward or downward. 1. Loosen the phillips screw located at the rear of the headlamp. 2. Tilt the headlamp upward or downward. 3. Tighten the screw. Phillips Screw

100 MAINTENANCE Lights Headlight Housing Replacement 1. Remove the five (5) headlight pod screws. 2. Lift the pod cover and disconnect the speedometer harnesses from the speedometer. 3. Unplug the headlamp from the wiring harness. 4. Use a small screwdriver to remove the o-rings from the headlight m...

101 MAINTENANCE Lights Lower Headlamp Replacement 1. Turn the back of the headlight harness counter-clockwise and pull the harness assembly away from the headlight assembly. 2. Remove the headlamp and install the new headlamp. 3. Reinstall the harness assembly into the headlight assembly. 4. Turn th...

102 MAINTENANCE Spark Plugs Spark Plug Recommendations Refer to the specifications section beginning on page 126 for the recom-mended spark plug type and gap for your vehicle. Torque spark plugs to specification. NOTICE: Using non-recommended spark plugs can result in serious engine damage. Always u...

103 MAINTENANCE Spark Plugs Spark Plug Inspection Normal Spark Plug The normal insulator tip is gray, tan or light brown. There will be few combustion deposits. The electrodes are not burned or eroded. This indi-cates the proper type and heat range for the engine and the service. The tip should not ...

104 MAINTENANCE Vehicle Immersion If your vehicle becomes immersed, major engine damage can result if the machine is not thoroughly inspected. Take the vehicle to your dealer before starting the engine. If it's impossible to take your ATV to a dealer before starting it, follow the steps outlined bel...

105 MAINTENANCE Spark Arrester Failure to heed the following warnings while servicing the spark arrester could result in serious injury or death. Never run the engine in an enclosed area. Remove any combustible materials from the area. Wear eye protection and leather work gloves. Do not stand behind...

106 MAINTENANCE PVT System Failure to comply with the instructions in this warning can result in severe injury or death.Do not modify any component of the PVT system. Doing so may reduce its strength so that a failure may occur at a high speed. The PVT system has been precision balanced. Any modific...

108 MAINTENANCE PVT System When To Use Low Range and High Range PVT Drying There may be some instances when water is accidently ingested into the PVT system. Use the following instructions to dry it out before operat-ing. 1. Position the vehicle on a level surface. 2. Remove the drain plug. Allow th...

109 MAINTENANCE Camber and Caster The camber and caster are non-adjustable. Front and Rear Springs The front and rear shock absorber springs are adjusted by rotating the adjuster either clockwise or counter-clockwise to increase or decrease spring tension. Accessory springs are available through you...

110 MAINTENANCE Throttle Body/Idle RPM Idle RPM is preset by the manufacturer. If the engine idle speed is not satisfactory, please see your POLARIS dealer for adjustment. Throttle Cable Freeplay 1. Remove the four cover screws from the right han-dlebar control and remove the cover. 2. With the hand...

111 MAINTENANCE Throttle Cable Freeplay 4. Place the transmission in PARK. Lock the parking brake. 5. Start the engine and allow the idle to stabilize. If necessary, tap the throttle lever to ensure the idle speed settles. 6. If idle speed remains above or below the recommended setting (see specific...

112 MAINTENANCE Battery Improperly connecting or disconnecting battery cables can result in an explosion and cause serious injury or death. When removing the battery, always disconnect the negative (black) cable first. When reinstalling the battery, always connect the negative (black) cable last. Yo...

113 MAINTENANCE Battery Battery Installation Using a new battery that has not been fully charged can damage the bat-tery and result in a shorter life. It can also hinder vehicle performance. Follow the battery charging instructions on page 114 before installing the battery. If your factory-installed...

114 MAINTENANCE Battery Battery Charging The following battery charging instructions apply only to the installa-tion of a sealed battery. Read all instructions before proceeding with the installation of this battery. The sealed battery is already filled with electrolyte and has been sealed and fully...

115 MAINTENANCE Battery Battery Charging Always verify battery condition before and 1-2 hours after the end of charging. State of Charge Voltage Action Charge Time (Using constant current charger @ standard amps specified on top of battery) 100% 12.8-13.0 volts None, check at 3 mos. from date of man...

116 MAINTENANCE Cleaning and Storage Washing the Vehicle Keeping your POLARIS vehicle clean will not only improve its appear-ance but it can also extend the life of various components. NOTICE: High water pressure may damage components. POLARIS recommends washing the vehicle by hand or with a garden ...

117 MAINTENANCE Cleaning and Storage Washing the Vehicle If a high pressure water system is used for cleaning (not recommended), exercise extreme caution. The water may damage components and could remove paint and labels. Avoid directing the water stream at the follow-ing items: If an informational ...

118 MAINTENANCE Cleaning and Storage Storage Tips NOTICE: Starting the engine during the storage period will disturb the protective film created by fogging and damage could occur. Never start the engine during the storage period. Clean the Exterior Make any necessary repairs and then clean the vehic...

119 MAINTENANCE Cleaning and Storage Storage Tips Fog the Engine 1. After stabilizing the fuel, remove the spark plugs and add 2-3 table- spoons of engine oil. To access the plug holes, use a section of clear 1/4" hose and a small plastic squeeze bottle filled with the pre-mea-sured amount of oi...

120 MAINTENANCE Transporting the ATV 1. Stop the engine. 2. Place the transmission in PARK. 3. Lock the parking brake. 4. Secure the fuel cap, oil cap and seat. 5. Always tie the frame of the ATV to the transporting unit securely with suitable straps or rope. Do not attach tie straps to the front A-...

121 TROUBLESHOOTING Drive Belt Wear/Burn Possible Cause Solution Driving onto a pickup or tall trailer in high range Use low range during loading. Starting out going up a steep incline Use low range or turn around using the K-turn (see page 64). Driving at low RPM or ground speed (3-7 MPH) Drive at ...

122 TROUBLESHOOTING Engine Doesn't Turn Over Engine Turns Over, Fails to Start Engine Backfires Possible Cause Solution Low battery voltage Recharge the battery to 12.8 VDC Loose battery connections Check all connections and tighten Loose solenoid connections Check all connections and tighten Possib...

123 TROUBLESHOOTING Engine Pings or Knocks Engine Runs Irregularly, Stalls or Misfires Possible Cause Solution Poor quality or low octane fuel Replace with recommended fuel Incorrect ignition timing See your dealer Incorrect spark plug gap or heat range Set gap to specs or replace plugs Possible Cau...

124 TROUBLESHOOTING Engine Stops or Loses Power Engine Overheating Possible Cause Solution Out of fuel Refuel, cycle key to ON position three times for 5 seconds each, then start Kinked or plugged fuel vent line Inspect and replace Water is present in fuel Replace with new fuel Fouled or defective s...

125 POLARIS PRODUCTS Part Number Description Engine Lubricant 2870791 Fogging Oil (12 oz./355 ml Aerosol) 2876244 PS-4 PLUS Performance Synthetic 2W-50 4-Cycle Oil (qt./.95 l) 2876245 PS-4 PLUS Performance Synthetic 2W-50 4-Cycle Oil (gal./3.8 l) Gearcase / Transmission Lubricants 2878068 AGL PLUS T...

126 SPECIFICATIONS * Based on EU Directive 76/432/EC SPORTSMAN 550 / 550 EPS Maximum Weight Capacity 575 lbs. (261 kg) (includes operator, cargo and accessories) Dry Weight 718 lbs. (325.7 kg)724 lbs. (328.4 kg) (EPS) Fuel Capacity 5.25 gal. (20 l) Engine Oil Capacity 2 qts. (1.9 l) Coolant Capacity...

127 SPECIFICATIONS Clutching *EBS models require no helix/spring adjustment SPORTSMAN 550 / 550 EPS Transmission H/L/N/R/P Gear Reduction, Low 5.034:1 Gear Reduction, Reverse 4.508:1 Gear Reduction, High 2.693:1 Drive Ratio, Front 3.818:1 Drive Ratio, Rear 3.7:1 Tires/Pressure, Front MAXXIS AT 26x8-...

130 WARRANTY LIMITED WARRANTY POLARIS Sales Inc., 2100 Highway 55, Medina, MN 55340, gives a SIX MONTH LIMITED WARRANTY on all components of the POLARIS All Terrain Vehicle (ATV) against defects in material or workmanship. POLARIS also gives a one year limited warranty on the final drive chain (if e...

132 WARRANTY LIMITATIONS OF WARRANTIES AND REMEDIES This warranty also excludes failures resulting from improper lubrication; improper engine timing; improper fuel; surface imperfections caused by external stress, heat, cold or contamination; operator error or abuse; improper component alignment, te...

133 WARRANTY HOW TO OBTAIN WARRANTY SERVICE If your ATV requires warranty service, you must take it to a POLARIS dealer authorized to repair POLARIS ATVs. When requesting warranty service you must present your copy of the Warranty Registration form to the dealer. (THE COST OF TRANSPORTA-TION TO AND ...

134 WARRANTY Exported Vehicles EXCEPT WHERE SPECIFICALLY REQUIRED BY LAW, THERE IS NO WAR-RANTY OR SERVICE BULLETIN COVERAGE ON THIS VEHICLE IF IT IS SOLD OUTSIDE THE COUNTRY OF THE SELLING DEALER'S AUTHORIZED LOCA-TION.This policy does not apply to vehicles that have received authorization for expo...

135 WARRANTY Exported Vehicles How to Get Service If Purchased From A Private Party: If you purchase a POLARIS product from a private citizen, to be kept and used outside of the country in which the vehicle was originally purchased, all warranty coverage will be denied. You must nonetheless warranty...

138 MAINTENANCE LOG Present this section of your manual to your dealer each time your vehicle is serviced. This will provide you and future owners with an accurate log of maintenance and ser-vices performed. DATE MILES (KM) OR HOURS TECHNICIAN SERVICE PERFORMED / COMMENTS

142 INDEX 0-9 4X4 Switch . . . . . . . . . . . . . . . . 24, 32 A Access, Front Compartment . . . . . . 52Accessories . . . . . . . . . . . . . . . . . . 120Active Descent Control Fluid . . . 82-83Active Descent Control System . . . . 33ADC System . . . . . . . . . . . . . . . . . . 33Air Filter . ....