The information printed within this publication includes the latest product information at time of print. The most recent
version of this Service Manual is available in electronic format at www.polarisdealers.com.
This Service Manual is designed primarily for use by certified Polaris Master Service Dealer
equipped shop and should be kept available for reference. All references to left and right side of the vehicle are from
the operator's perspective when seated in a normal riding position.
Some procedures outlined in this manual require a sound knowledge of mechanical theory, tool use, and shop
procedures in order to perform the work safely and correctly. Technicians should read the text and be familiar with the
service procedures before starting any repair. Certain procedures require the use of special tools. Use only the proper
tools as specified. If you have any doubt as to your ability to perform any of the procedures outlined in this Service
Manual, contact an authorized dealer for service.
We value your input and appreciate any assistance you can provide in helping make these publications more useful.
Please provide any feedback you may have regarding this manual. Authorized dealers can submit feedback using 'Ask
Polaris'. Click on 'Ask Polaris', and then click on 'Service Manual / Service Literature Question'.
Consumers, please provide your feedback in writing to: Polaris Industries Inc. ATTN: Service Publications Department,
2100 Hwy 55, Medina, MN 55340.
Publication Printed September 2013 (PN 9924864)
®
technicians in a properly
COPYRIGHT INFO
All information contained within this publication is based on the latest product information at the time of publication. Due
to constant improvements in the design and quality of production components, some minor discrepancies may result
between the actual vehicle and the information presented in this publication. Depictions and/or procedures in this
publication are intended for reference use only. No liability can be accepted for omissions or inaccuracies. Any
reprinting or reuse of the depictions and/or procedures contained within, whether whole or in part, is expressly
prohibited. Printed in U.S.A.
UNDERSTANDING SAFETY LABELS AND DIRECTIONS
Throughout this manual, important information is brought to your attention by the following symbols:
WARNING
SAFETY ALERT WARNING indicates a potential hazard that may result in severe injury or death to the operator,
bystander or person(s) inspecting or servicing the vehicle.
CAUTION
SAFETY ALERT CAUTION indicates a potential hazard that may result in minor personal injury or damage to the
vehicle.
CAUTION
CAUTION indicates special precautions that must be taken to avoid vehicle damage or property damage.
NOTE:
NOTE provides key information by clarifying instructions.
IMPORTANT:
IMPORTANT provides key reminders during disassembly, assembly and inspection of components.
TRADEMARKS
POLARIS ACKNOWLEDGES THE FOLLOWING PRODUCT(S) MENTIONED IN THIS MANUAL:
Loctite, Registered Trademark of the Loctite Corporation
Nyogel, Trademark of Wm. F. Nye Co.
Fluke, Registered Trademark of John Fluke Mfg. Co.
Mity-Vac, Registered Trademark of Neward Enterprises, Inc.
Torx, Registered Trademark of Textron
Hilliard, Trademark of the Hilliard Corporation
Warn, Trademark of Warn Industries
FOX, Registered Trademark of FOX RACING SHOX
RydeFX, Registered Trademark of ArvinMeritor
Some Polaris factory publications can be downloaded from www.polarisindustries.com, purchased from
www.purepolaris.com or by contacting the nearest Polaris dealer.
* = digits that would transfer to 17 digit VIN and are used in digits 4-8 respectively
** = 9th digit will be used on color/featured versions of models (not including the base)
First 3 digits and 9th digit are used in model number only. They are not used with the 17 digit VIN.
Digits 1 through 8 determine Digital Wrench calibration.
MODEL
YEAR
CHASSIS
DRIVE-
LINE
ENGINE /
MOTOR CODE
CATEGORYOPTIONREGION
Vehicle Identification Number (VIN) Designation
Example: 4XAKA09A0E3000000
VEHICLE DESCRIPTORSVEHICLE IDENTIFIERS
EN-
WORLD MFG. ID
CHASSIS
DRIVELINE
ENGINE
SIZE
GINE
MODIFIE-
CATEGORY
CHECK
DIGIT
R
1234
567891011121314151617
4XAKA09A0E3000000
* Model Year: A = 2010; B = 2011; C = 2012; D = 2013; E = 2014
EH076OLE - Twin Cylinder, Liquid Cooled,4 Stroke, Electric Start
VIN and Engine Serial Number Location
The Vehicle Identification Number (VIN) and engine serial number are important for identification purposes. Whenever
corresponding about a Polaris utility vehicle, be sure to refer to the VIN and the engine serial number.
The machine VIN is stamped on the lower left side of the frame tube (A).
The engine serial number can be found on the sticker applied to the side of the cylinder head (B). An additional
identification number is stamped on the side of the crankcase beneath the oil filter (C).
The transmission serial number is important for identification purposes. Whenever corresponding about a
transmission, be sure to refer to the transmission serial number.
The transmission ID is printed on a label located as shown below.
Special tools may be required while servicing this vehicle. Some of the tools listed or depicted are mandatory, while
other tools maybe substituted with a similar tool, if available. Polaris recommends the use of Polaris Special Tools
when servicing any Polaris product. Dealers may order special tools through Polaris’ official tool supplier, Bosch
Automotive Service Solutions, 1-800-345-2233 or on-line at http://polaris.service-solutions.com/.
Replacement Keys
Replacement keys can be made from the original key. To identify which series the key is, take the first two digits on the
original key and refer to the chart to the right for the proper part number. Should both keys become lost, ignition switch
replacement is required.
Special tools may be required while servicing this vehicle. Some of the tools listed or depicted are mandatory, while
other tools maybe substituted with a similar tool, if available. Polaris recommends the use of Polaris Special Tools
when servicing any Polaris product. Dealers may order special tools through Polaris’ official tool supplier, Bosch
Automotive Service Solutions, by phone at 1-800-345-2233 or on-line at http://polaris.service-solutionsx.com/.
Overview
Careful periodic maintenance will help keep your vehicle in the safest, most reliable condition. Inspection, adjustment
and lubrication of important components are explained in the periodic maintenance chart.
Inspect, clean, lubricate, adjust and replace parts as necessary. When inspection reveals the need for replacement
parts, use genuine Polaris parts available from your Polaris dealer.
NOTE: Service and adjustments are critical. If you're not familiar with safe service and adjustment procedures, have a
qualified dealer perform these operations.
Maintenance intervals in the following chart are based upon average riding conditions and an average vehicle speed of
approximately 10 miles per hour. Vehicles subjected to severe use must be inspected and serviced more frequently.
• Frequent immersion in mud, water or sand
• Racing or race-style high RPM use
• Prolonged low speed, heavy load operation
• Extended idle
• Short trip cold weather operation
2
Pay special attention to the oil level. A rise in oil level during cold weather can indicate contaminants collecting in the
oil sump or crankcase. Change oil immediately if the oil level begins to rise. Monitor the oil level, and if it continues to
rise, discontinue use and determine the cause.
Maintenance Chart Key
The following symbols denote potential items to be aware of during maintenance:
■ = CAUTION: Due to the nature of these adjustments, it is recommended this service be performed by an authorized
Polaris dealer.
▶ = SEVERE USE ITEM – If vehicle is subjected to severe use, decrease interval by 50% (Severe Use is defined as
frequent vehicle immersion in mud, water or sand, racing or race-style high rpm use, prolonged low speed - heavy load
operation or extended idle. More preventative maintenance is required under these conditions. Fluid changes, cable,
chain and chassis lubrication are required more frequently. For engine oil, short trip cold weather riding also constitutes
severe use. Pay special attention to oil level. A rising oil level in cold weather can indicate contaminants collecting in
the oil sump or crankcase. Change oil immediately and monitor level. If oil level begins to rise, discontinue use and
determine cause.)
E = Emission Control System Service (California).
NOTE: Inspection may reveal the need for replacement parts. Always use genuine Polaris parts.
WARNING: Improperly performing the procedures marked with a ■ could result in component failure and lead to
serious injury or death. Have an authorized Polaris dealer perform these services.
*** Service Note: Under extreme use, change demand drive fluid every 25 hours. “Extreme Use” is defined as constant ADC operation on hilly or
mountainous terrain, or if ADC is the primary mode of operation.
▶ = Perform these procedures more often for vehicles subjected to severe use.
E = Emission Control System Service (California)
■ = Have an authorized Polaris Dealer perform these services.
100 H12 M
100 H12 M
100 H12 M
100 H12 M
100 H12 M
100 H12 M
100 H12 M
100 H12 M
100 H12 M
100 H12 M
100 H12 M
300 H36 M
CALEN-
DAR
—
—
—
—
MILES (KM)
1000 (1600)Inspect routing, condition
1000 (1600)
1000 (1600)Inspect; clean external surfaces
1000 (1600)Inspect for leaks
1000 (1600)Inspect
1000 (1600)Inspect
1000 (1600)Inspect; replace as needed
1000 (1600)Inspect
1000 (1600)
1000 (1600)Inspect; clean; replace worn parts
1000 (1600)Inspect; replace as needed
2000 (3200)Change every two years
2000 (3200)Change every two years
3000 (4800)
Check for leaks at tank cap, lines, fuel pump, filter, pump,
injectors; replace lines every two years
Inspect for wear, routing, security; apply dielectric grease to
connectors subjected to water, mud, etc.
Clean out
Adjust as needed
Inspect periodically; adjust when parts are replaced
Perform the following pre-ride inspection daily, and when servicing the vehicle at each scheduled maintenance.
• Tires - check tire condition and air pressures
• Fuel and oil - fill both to their proper level; Do not overfill
• All brakes - check operation and adjustment (includes auxiliary brake)
• Throttle -check for free operation
• Headlight/Taillight/Brake light - check operation of all indicator lights and switches
• Engine stop switch - check for proper function
• Wheels - check for loose wheel nuts and axle nuts; check to be sure axle nuts are secured by cotter pins
• Air cleaner element - check for dirt or water; clean or replace
• Steering - check for free operation, noting any unusual looseness in any area
• Loose parts - visually inspect vehicle for any damaged or loose nuts, bolts or fasteners
• Engine coolant - check for proper level at the recovery bottle
Lubrication / Grease Points (4x4)
#ITEMLUBEMETHOD
Engine Oil
1.
2.Transmission
Front
3
Gearcase
4.Brake Fluid
5.Front A-Arm
6.Rear A-Arm
Propshafts
7.
* Perform more often under severe use, such as operation in water and under severe loads.
(A) Semi-annually or 50 hours of operation. Refer to Maintenance Schedule for additional information. Service more
often under severe conditions (i.e. operating in water or hauling heavy loads).
(B) Annually or 100 hours of operation Refer to Maintenance Schedule for additional information. Service more often
under severe conditions (i.e. operating in water or hauling heavy loads). ADC gearcase fluid should be changed every
25hrs of operation in extreme use conditions (i.e. continuous operation on hilly or mountainous terrain or if ADC ‘on’ is
primary mode of AWD operation).
(C) Grease conforming to NLGI No. 2, such as Polaris Premium All Season Grease, Conoco Superlube M, or
Mobilgrease Special.
Polaris PS-4
Polaris AGL Synthetic
Gearcase Lube
Demand Drive Fluid
Polaris DOT 4 Brake
Fluid
Polaris All Season
Grease
Polaris All Season
Grease
Polaris U-Joint Grease
(C)
Check dipstick and add to
proper level.
Add lube to bottom fill hole.
Drain as directed.
Add specified quantity.
Fill master cylinder
reservoir to indicated level
Locate fitting and grease.Semi-annually (A)
Locate fitting and greaseSemi-annually (A)
Locate fitting and grease.Semi-annually (A)
FREQUENCY*
Change after 1st month, then 6 months
or 100 hours thereafter; Change more
often (25-50 hours) in extremely dirty
conditions, or short trip cold weather
operation.
* Perform more often under severe use, such as operation in water and under severe loads.
(A) Semi-annually or 50 hours of operation. Refer to Maintenance Schedule for additional information. Service more
often under severe conditions (i.e. operating in water or hauling heavy loads).
(B) Annually or 100 hours of operation Refer to Maintenance Schedule for additional information. Service more often
under severe conditions (i.e. operating in water or hauling heavy loads). ADC gearcase fluid should be changed every
25hrs of operation in extreme use conditions (i.e. continuous operation on hilly or mountainous terrain or if ADC ‘on’ is
primary mode of AWD operation).
(C) Grease conforming to NLGI No. 2, such as Polaris Premium All Season Grease, Conoco Superlube M, or
Mobilgrease Special.
Polaris PS4 2W/50
Polaris AGL Synthetic
Gearcase Lube
Demand Drive Fluid
ATVAngle Drive Fluid
Polaris DOT 4 Brake
Fluid
Polaris All Season
Grease
Polaris All Season
Grease
Polaris U-Joint Grease
(C)
Check dipstick and add to
proper level.
Add lube to bottom fill hole.
Drain as directed.
Add specified quantity.
Drain completely. Add lube
to specified quantity.
Fill master cylinder
reservoir to indicated level
Locate fitting and grease.Semi-annually (A)
Locate fitting and greaseSemi-annually (A)
Locate fitting and grease.Semi-annually (A)
FREQUENCY*
Change after 1st month, then 6 months
or 100 hours thereafter; Change more
often (25-50 hours) in extremely dirty
conditions, or short trip cold weather
operation.
The 800 EFI twin engine is a wet-sump engine, meaning
the oil is contained in the bottom of the crankcase. To
check the oil level:
1. Park machine on a level surface and set the parking
brake.
2. Stop the engine. Allow the oil level to settle for 3
minutes before removing the dipstick.
NOTE: Do not check oil immediately after engine
operation.
3. For easier access, remove the seat the RH side
panel.
5. Reinstall dipstick and push it into place. Do not lock
the dipstick.
NOTE: Make certain the dipstick is inserted all
the way into the filler tube to keep the angle and
depth of stick consistent. When reinstalling the
dipstick, make certain to seat the lever lock.
6. Remove dipstick (C) and check to see that the oil
level is in the normal range. Add oil as indicated by
the level on the dipstick. Do not overfill. (See NOTE
below!)
NOTE: Due to the dipstick entry angle into the
crankcase, the oil level will read higher on the
bottom side of the dipstick. Proper level
indication is determined on the upper side of the
dipstick as it is being removed, regardless of the
level marks being on top or on bottom. (See
illustration)
4. Unlock the lever lock (A). Remove dipstick (B) and
wipe dry with a clean cloth.
A rising oil level between checks in cool weather
driving can indicate contaminants such as gas or
moisture collecting in the crankcase. If the oil
level is over the full mark, change the oil
immediately.
MAINTENANCE
Oil/Filter Change
1. Park vehicle on a level surface.
2. Run engine two to three minutes until warm. Stop
engine.
3. Clean area around drain plug at bottom of engine.
4. Place a drain pan beneath crankcase and remove
drain plug.
CAUTION
Do not allow hot oil to come into contact
with your skin, as serious burns may result.
5. Allow oil to drain completely.
6. Replace the sealing washer on drain plug.
NOTE: The sealing surfaces on drain plug and
oil tank should be clean and free of burrs, nicks
or scratches.
7. Reinstall drain plug and torque to specification.
Drain Plug:
15 ft-lbs (22 Nm)
8. Place shop towels beneath oil filter (A). Using Oil
Filter Wrench PU-50105, turn filter counterclockwise
to remove.
10. Lubricate O-ring on new filter with a film of fresh
engine oil. Check to make sure the O-ring is in good
condition.
11. Install new filter and turn by hand until filter gasket
contacts the sealing surface, then turn an additional
1/2 turn.
12. Remove dipstick and fill sump with 2 quarts (1.9 l) of
recommended engine oil.
Recommended Engine Oil:
PS-4 Synthetic (PN 2876244)
Ambient Temp Range: -35° F to 100° F
PS-4 Extreme Duty Synthetic (PN 2878920)
Ambient Temp Range: 0° F to 120° F
Capacity: 2 Quarts (1.9 L)
Oil Filter (PN 2540086)
13. Place gear selector in park and set the parking
brake.
14. Start the engine and let it idle for one to two minutes.
Stop the engine and inspect for leaks.
15. Re-check the oil level on the dipstick and add oil as
necessary to bring the level to the upper mark on the
dipstick.
16. Dispose of used filter and oil properly.
2
9. Using a clean dry cloth, clean filter sealing surface
on crankcase.
The front gearcase lubricant level should be checked and
changed in accordance with the maintenance schedule.
• Be sure vehicle is level before proceeding and in
PARK
• Check vent hose to be sure it is routed properly
and unobstructed
• The correct front gearcase lubricant to use is
Polaris Demand Drive Hub Fluid.
To Change Gearcase Lubricant:
1. Remove gearcase drain plug (A) located on the
bottom of the gearcase and drain oil. (The drain plug
is accessible through the skid plate.) Catch and
discard used oil properly.
2. Clean and reinstall drain plug (A) using a new
sealing washer (B). Torque to specification.
Specified Lubricant:
Demand Drive Hub Fluid
Gearcase Capacity: 8.97oz. (265 ml.)
Fill Plug: 8-30 ft-lbs (11-40 Nm)
Drain Plug: 8-30 ft-lbs (11-40 Nm)
To Check the Lubricant Level:
Remove the check / fill plug. The fluid level should be at
the bottom of the check / fill plug case threads. See next
page.
4. Fill with the recommended fluid amount or to the
bottom of the fill plug hole threads. (See Illustration
below).
5. Install / torque fill plug and check for leaks.
MAINTENANCE
Front Gearcase Lubrication (6x6)
The front gearcase lubricant level should be checked and
changed in accordance with the maintenance schedule.
• Be sure vehicle is level before proceeding and in
PARK
• Check vent hose to be sure it is routed properly
and unobstructed
• The correct front gearcase lubricant to use is
Polaris Premium Demand Hub Fluid.
To Change Gearcase Lubricant:
2
1. Remove gearcase drain plug (A) located on the
bottom of the gearcase and drain oil. (The drain plug
is accessible through the skid plate.) Catch and
discard used oil properly.
2. Clean and reinstall drain plug (A) using a new O-ring
if needed. Torque to specification.
3. Remove fill plug. Inspect the O-ring.
4. Fill with the recommended fluid amount or to the
bottom of the fill plug hole threads. (See Illustration
below).
Specified Lubricant:
Demand Drive Hub Fluid
ADC Gearcase Capacity:
9.3 oz. (275ml.)
ADC GEARCASE SERVICE NOTE:
Under extreme use, change fluid every 25
hours. "Extreme Use" is defined as constant
ADC operation on hilly or mountainous terrain,
or if ADC is the primary mode of operation.
Fill Plug: 8-30 ft-lbs (11-40 Nm)
Drain Plug: 8-30 ft-lbs (11-40 Nm)
To Check the Lubricant Level:
Remove the check / fill plug. The fluid level should be at
the bottom of the check / fill plug case threads. See next
page.
every 25 hours. “Extreme Use” is defined as constant
ADC operation on hilly or mountainous terrain, or if ADC
‘on’ is the primary mode of AWD operation.
1. Make sure vehicle is parked on flat ground and
allowed to sit at least 30 minutes prior to bleeding
hydraulic circuit.
2. Thoroughly clean area around and on remote
reservoir and bleeder valves.
3. Remove reservoir cap and diaphragm assembly.
4. Make sure fluid inside reservoir is free of debris. If
any debris is found, use a clean rag or suction device
to remove from the reservoir.
7. Turn bleeder valves counter-clockwise to loosen.
Loosen bleeder screw slowly, allowing oil and any
trapped air to flow out of fitting.
NOTE: Do not allow hydraulic fluid in reservoir
to drain below minimum fill line. Close bleeder
valves before oil level falls below minimum fill
line. Refilling empty reservoir may result in air
pockets becoming trapped.
If an empty reservoir is encountered, filling of
fluid is still possible. Verify air bubbles are not
trapped in the reservoir line before proceeding
with step 7.
8. Continue steps 6-8 on both sides in sequence until
clean fluid is seen when bleeding occurs.
9. Re-torque both bleeder valves to specification and
reinstall cover caps.
Bleeder Valve:
80 in-lbs (9 Nm)
10. Fill reservoir with Demand Drive to a level midway
between ‘MAX’ and ‘MIN’ fill lines. Verify no debris is
found in reservoir.
11. Replace reservoir cap securely and wipe clean any
residue.
WARNING
Debris in reservoir may block porting and produce
inadequate bleeding of the system. Decreased
performance may be encountered with inadequate
5. Begin the bleeding process by filling reservoir to
‘MAX’ line with clean Demand Drive fluid.
6. Locate bleeder valves found on either side of
differential and remove the protective caps.
The transmission lubricant level should be checked and
changed in accordance with the maintenance schedule.
• Be sure vehicle is level and in Park before
proceeding.
• Check vent hose to be sure it is routed properly
and unobstructed.
• Follow instructions to check/change transmission
lubricant.
To Change Lubricant:
1. Remove transmission drain plug (B) to drain the oil.
Discard used oil properly.
2
2. Clean and reinstall the drain plug. Torque to
specification.
Transmission Drain Plug:
14 ft-lbs (19 Nm)
Transmission Check/Fill Plug:
14 ft-lbs (19 Nm)
To Check the Fluid Level:
Remove check / fill plug (A) from the left side of
transmission and visually inspect the oil level. Level is
correct when it reaches the bottom of the fill hole threads.
4. Add the correct amount of Polaris AGL Gearcase
Lubricant.
Transmission - Specified Lubricant:
Polaris AGL Gearcase Lubricant
(Gallon - PN 2878069) (1qt. - PN 2878068)
Capacity: 33.8 oz. (1000 ml)
5. Check for leaks.
6. Install fill plug. Torque to specification.
Transmission Check/Fill Plug:
14 ft-lbs (19 Nm)
2.15
MAINTENANCE
Transmission Lubrication (6x6)
The (transmission) lubricant level should be checked and
changed in accordance with the maintenance schedule.
• Be sure vehicle is level and in Park before
proceeding.
• Check vent hose to be sure it is routed properly
and unobstructed.
• Follow instructions to check / change transmission
lubricant.
To Change Lubricant:
1. Remove transmission drain plug (B) to drain the oil.
Discard used oil properly.
2. Clean and reinstall the drain plug (B). Torque to
specification.
3. Remove fill plug (A).
4. Add the correct amount of Polaris AGL Gearcase
Lubricant.
5. Check for leaks.
6. Install fill plug (A). Torque to specification.
Transmission - Specified Lubricant:
Polaris AGL Gearcase Lubricant
(Gallon - 2878068) (Quart. - PN 2878069)
Sportsman 6x6 - Capacity: 17.2 oz. (510 ml)
Transmission Drain / Fill Plug:
14 ft-lbs (19 Nm)
To Check the Fluid Level:
Remove fill plug (A) from the back of the transmission
and visually inspect the oil level. Level is correct when it
reaches the bottom of the fill hole as shown at below.
The middle gearcase lubricant level should be checked
and changed in accordance with the maintenance
schedule.
• Be sure vehicle is level before proceeding and in
PARK
• Check vent hose to be sure it is routed properly
and unobstructed
To Change Gearcase Lubricant:
1. Remove gearcase drain plug (A) located on the
bottom of the gearcase and drain oil. (The drain plug
is accessible through the skid plate.) Catch and
discard used oil properly.
2
2. Clean and reinstall drain plug (A) using a new
sealing ring (B). Torque to specification.
3. Remove fill plug. Inspect the o-ring and replace if
necessary.
4. Fill with the recommended fluid amount or to the
bottom of the fill plug hole threads.
5. Install / torque fill plug and check for leaks.
Specified Lubricant:
Polaris Angle Drive Fluid (ADF)
Gearcase Capacity:
13.5 oz. (400 ml.)
Fill Plug: 15 ft-lbs (20 Nm)
Drain Plug: 15 ft-lbs (20 Nm)
To Check the Lubricant Level:
Remove the check / fill plug. The fluid level should be at
the bottom of the check / fill plug case threads. See next
page.
The rear gearcase lubricant level should be checked and
changed in accordance with the maintenance schedule.
• Be sure vehicle is level before proceeding and in
PARK
• Check vent hose to be sure it is routed properly
and unobstructed
Specified Lubricant:
Polaris Angle Drive Fluid
Gearcase Capacity: 5.0 oz. (150 ml.) Fill to bottom of
check / fill plug hole threads.
Fill Plug: 9 ft-lbs (12 Nm)
Drain Plug: 11 ft-lbs (15 Nm)
To Check the Lubricant Level:
Remove the check / fill plug. The fluid level should be at
the bottom of the check / fill plug case threads. See next
page.
To Change Gearcase Lubricant:
1. Remove gearcase drain plug (A) located on the
bottom of the gearcase and drain oil. (The drain plug
is accessible through the skid plate.) Catch and
discard used oil properly.
2. Clean and reinstall drain plug (A) using a new
sealing washer (B). Torque to specification.
3. Remove fill plug. Inspect the o-ring and replace if
necessary.
4. Fill with the recommended fluid amount or to the
bottom of the fill plug hole threads. (See Illustration
below).
2.18
5. Install / torque fill plug and check for leaks.
NOTE: Shift rod is preset at time of manufacturer.
1. Lubricate pivot points with a light aerosol lubricant or
grease if desired.
Shift Link Rod Inspection (6x6)
NOTE: Shift rod is preset at time of manufacturer.
1. Inspect shift link tie rod ends and replace if worn or
damaged. Lubricate pivot points with a light aerosol
lubricant or grease if desired.
Throttle Inspection
Check for smooth throttle opening and closing in all
handlebar positions. Throttle lever operation should be
smooth and lever must return freely without binding.
1. Place the gear selector in neutral.
2. Place shift selector in neutral and set parking brake.
3. Loosen lock nut on in-line cable adjuster (Ill. 1).
4. Turn handlebars from full right to full left. If idle speed
increases at any point in the turning range, inspect
throttle cable routing and condition. Adjust cable
tension as needed until lock-to-lock turning can be
accomplished with no rise in engine rpm.
5. Replace the throttle cable if worn, kinked, or
damaged.
To Remove TRS Cover:
6. Use a medium flat blade screwdriver and insert
blade into the pocket of the cover starting on the #1
position.
7. Twist screwdriver slightly while lifting on the cover to
release snap.
8. Repeat procedure at the other five locations as
shown.
NOTE: Do not attempt to remove cover until all
latch points are released.
4. Turn adjuster (C) until specified freeplay is achieved
at thumb lever. (see illustration). After making
adjustments, quickly actuate the thumb lever several
times and reverify freeplay.
Fuel System
WARNING
* Gasoline is extremely flammable and explosive under
certain conditions.
* EFI components are under high pressure. Verify
system pressure has been relieved before disassembly.
* Never drain the fuel system when the engine is hot.
Severe burns may result.
* Do not overfill the tank. The tank is at full capacity
when the fuel reaches the bottom of the filler neck.
Leave room for expansion of fuel.
* Never start the engine or let it run in an enclosed area.
Gasoline powered engine exhaust fumes are poisonous
and can cause loss of consciousness and death in a
short time.
* Do not smoke or allow open flames or sparks in or
near the area where refueling is performed or where
gasoline is stored.
* If you get gasoline in your eyes or if you should
swallow gasoline, seek medical attention immediately.
0.0625 - 0.1250" (1.58 - 3.17mm)
Throttle Freeplay:
5. Turn handlebars from left to right through the entire
turning range. If idle speed increases, check for
proper cable routing. If cable is routed properly and
in good condition, repeat adjustment procedure
* If you spill gasoline on your skin or clothing,
immediately wash with soap and water and change
clothing.
* Always stop the engine and refuel outdoors or in a
well ventilated area. Keep away from open flames and
electrical components when removing fuel filter.
Vent Lines
Check fuel tank, oil tank, battery and transmission vent
lines for signs of wear, deterioration, damage or leakage.
Replace Be sure vent lines are routed properly and
secured with cable ties.
IMPORTANT:ThisenginedoesNOThave
decompression components. Compression readings
will vary in proportion to cranking speed during the
test. Average compression (measured) is about 150200 psi during a compression test.
A smooth idle generally indicates good compression.
Low engine compression is rarely a factor in running
condition problems above idle speed. Abnormally high
compression can be caused by carbon deposits in the
combustion chamber or worn, damaged exhaust cam
lobes. Inspect camshaft and combustion chamber if
compression is abnormally high.
A cylinder leakdown test is the best indication of engine
condition. Follow manufacturer's instructions to perform
a cylinder leakage test. (Never use high pressure
leakage testers, as crankshaft seals may dislodge and
leak).
Cylinder Compression
Standard: 150-200 PSI
Cylinder Leakdown
Service Limit 15%
(Inspect for cause if test exceeds 15%)
Engine Mounts
Inspect rubber engine mounts (A) for cracks or damage.
Check engine fasteners and mounts, ensure they are
tight.
1. Clean plug area so no dirt and debris can fall into
engine when plug is removed. Remove spark plug
high tension lead.
2. Remove spark plug.
3. Inspect electrodes for wear and carbon buildup. Look
for a sharp outer edge with no rounding or erosion of
the electrodes.
4. Clean with electrical contact cleaner or a glass bead
spark plug cleaner only.
CAUTION
6. If necessary, replace spark plug with proper type.
WARNING
Severe engine damage may occur if the incorrect spark
plug is used.
7. Apply a small amount of anti-seize compound to the
spark plug threads.
8. Install spark plug and torque to specification.
Spark Plug:
18 ft-lbs (24 Nm)
A wire brush or coated abrasive should not
be used for cleaning spark plugs.
5. Measure gap with a wire gauge. Refer to
specifications for proper spark plug type and gap.
Adjust gap if necessary by bending the side
electrode carefully.
Completebattery servicinginformation forboth
conventional and sealed batteries can be found in
Chapter 10 of this manual.
MAINTENANCE
WARNING
CALIFORNIA PROPOSITION 65 WARNING:
Batteries, battery posts, terminals and related
accessories contain lead and lead compounds and
other chemicals known to the State of California to
cause cancer, birth defects, or other reproductive harm.
Battery electrolyte is poisonous. It contains sulfuric
acid. Serious burns can result from contact with skin,
eyes or clothing.
ANTIDOTE:
External: Flush with water.
Internal: Drink large quantities of water or milk. Follow
with milk of magnesia, beaten egg, or vegetable oil. Call
a physician immediately.
Eyes: Flush with water for 15 minutes and get prompt
medical attention.Batteries produce explosive gases.
Keep sparks, flame, cigarettes, etc. away. Ventilate
when charging or using in an enclosed space. Always
shield eyes when working near batteries.
KEEP OUT OF REACH OF CHILDREN.
NOTE: Expected battery shelf life is 6-8 months
depending on storage conditions. As a general rule
before placing the battery into service, check the
battery condition and charge accordingly.
New Batteries: Batteries must be fully charged
before use or battery life will be reduced by 10-30%
of full potential. Charge battery for 3-5 hours at a
current equivalent of 1/10 of the battery's rated amp/
hour capacity. Do not use the alternator to charge a
new battery. (Refer to battery video PN 9917987).
(Conventional Battery Only) Inspect the battery fluid
level. When the electrolyte nears the lower level, remove
the battery and add distilled water only to the upper level
line.
2
To Remove the Battery:
1. Disconnect holder strap and remove cover.
2. Disconnect battery negative (-) (black) cable first,
followed by the positive (+) (red) cable.
WARNING
To reduce the chance of sparks: Whenever removing
the battery, disconnect the negative (black) cable first.
When reinstalling the battery, install the negative cable
last.
3. Disconnect the vent hose.
4. Remove the battery.
5. (Conventional Battery Only) Remove the filler caps
and add distilled water only as needed to bring each
cell to the proper level. Do not overfill the battery.
NOTE:Use only distilled water. Tap water
contains minerals which are harmful to a battery.
Do not allow cleaning solution or tap water to
enter a battery, as it will shorten the life of the
battery.
8. Clean battery cables and terminals with a stiff wire
brush. Corrosion can be removed using a solution of
one cup water and one tablespoon baking soda.
Rinse well with clean water and dry thoroughly.
9. Reinstall battery, attaching positive (+) (red) cable
first and then the negative (-) (black) cable.
10. Reattach vent hose making sure it is properly routed
and not kinked or pinched.
11. Coat terminals and bolt threads with Dielectric
Grease (PN 2871329).
12. Reinstall battery cover and holder strap.
Cooling System
The engine coolant level is controlled or maintained by
the recovery system. The recovery system components
are the recovery bottle, radiator filler neck, radiator
pressure cap and connecting hose.
As coolant operating temperature increases, the
expanding (heated) excess coolant is forced out of the
radiator past the pressure cap and into the recovery
bottle. As engine coolant temperature decreases the
contracting (cooled) coolant is drawn back up from the
tank past the pressure cap and into the radiator.
• Some coolant level drop on new machines is
normal as the system is purging itself of trapped
air. Observe coolant levels often during the breakin period.
• Overheating of engine could occur if air is not fully
purged from system.
• Polaris Premium 60/40 anti-freeze is premixed and
ready to use. Do not dilute with water.
Coolant Strength / Type
Test the strength of the coolant using an antifreeze
hydrometer.
Cooling Hoses
Inspect all hoses for cracks, deterioration, abrasion or
leaks. Replace if necessary.
• A 50/50 or 60/40 mixture of antifreeze and distilled
water will provide the optimum cooling, corrosion
protection, and antifreeze protection.
• Do not use tap water, straight antifreeze, or
straight water in the system. Tap water contains
minerals and impurities which build up in the
system.
• Straight water or antifreeze may cause the system
to freeze, corrode, or overheat.
Polaris 60/40 Anti-Freeze/ Coolant
(PN 2871323)
2.24
9924864 - 2012-2014 SPORTSMAN 800 / 6X6
1. Check tightness of all hose clamps.
2. Do not over-tighten hose clamps at radiator or
radiator fitting may distort, causing a restriction or
leak.
Radiator
1. Check radiator external air flow passages for
restrictions or damage.
2. Carefully straighten any bent radiator fins.
3. Remove any obstructions with compressed air or low
pressure water.
engine is warm or hot. Escaping steam and fluid can
cause severe burns. The engine must be allowed to
cool before removing the pressure cap.
Remove any obstructions with compressed air or low
pressure water.
With the engine at operating temperature, the coolant
level should be between the upper and lower marks on
the coolant reservoir. If it is not:
1. Remove reservoir cap. Verify the vent is clear and
open.
2. Fill reservoir (A) to upper mark with Polaris Premium
60/40 Anti Freeze / Coolant (PN 2871323) or a
mixture of antifreeze and distilled water as required
for freeze protection in your area.
3. Reinstall cap.
IMPORTANT: If overheating is evident, allow
system to cool completely and check coolant
level in the radiator. Inspect for signs of trapped
air in system.
Radiator Coolant Level
WARNING
Never remove the radiator pressure cap when the
engine is warm or hot. Escaping steam and fluid can
cause severe burns. The engine must be allowed to
cool before removing the pressure cap.
NOTE: This procedure is only required if the cooling
system has been drained for maintenance and/or
repair. However, if the recovery bottle has run dry, or
if overheating is evident, the level in the radiator
should be inspected via the radiator cap first and
coolant added if necessary.
Use of a non-standard pressure cap will not allow
the recovery system to function properly.
To Access the Radiator Pressure Cap and add fluid:
1. Open the front rack storage area.
2. Remove the (4) T-25 screws securing the access
cover to the front cab as shown below.
It is recommended that the air filter and pre filter be
replaced annually. When riding in extremely dusty
conditions, replacement is required more often.
The pre filter should be inspected before each ride, and if
required, cleaned using the following procedure:
1. lift the seat lock lever and lift up on the rear of the
seat.
2. Pull the seat back and free of the tabs.
NOTE: When reinstalling seat, make sure the
slots in the seat engage the tabs in the fuel tank.
3. Remove (6) clips (A) from air box cover and remove
cover. Inspect the gasket. It should adhere tightly to
the cover and seal all the way around.
7. Inspect element for tears or damage.
8. Inspect main filter and replace if necessary. If the
filter has been soaked with fuel or oil it must be
replaced.
Installation:
9. Reinstall pre-filter element over main filter. Be sure
the element covers entire surface of main filter
without folds, creases, or gaps.
10. Reinstall filter on main filter mount. Place filter clamp
over the assembly and tighten.
IMPORTANT: Apply a small amount of general
purpose grease to the sealing edges of the filter
before reinstalling.
2
4. Loosen clamp and remove air filter assembly.
Cleaning:
5. Slip the pre-filter element off of main element. Clean
the pre filter with hot, soapy water.
NOTE: The air filter should rest on the filter
support. Proper placement of the air filter is
important to prevent rattles and air leaks. See
Illustration above.
11. Install air box cover and secure with the (6) clips.
2.27
MAINTENANCE
Air Box Sediment Tube
Periodically check the air box drain tube located toward
the rear of the machine. Drain whenever deposits are
visible in the clear tube.
1. Remove drain plug (A) from end of sediment tube
(B).
2. Drain tube.
3. Reinstall drain plug.
NOTE: The sediment tube will require more
frequent service if the vehicle is operated in wet
conditions or at high throttle openings for
extended periods.
Engine Breather Hose
Four-cycle ATV engines are equipped with a engine
breather hose (C). The breather line is located on top of
the cylinder head cover, below the gas tank. Be sure
breather line is routed properly and secured in place.
Make sure the line is not kinked or pinched.
IMPORTANT: If operating the ATV in or through
water, be sure to check the PVT cover and other
components for water ingestion. The ATV should be
checked immediately.
1. To release any water that maybe trapped in the PVT
cover, simply remove the PVT drain plug and O-ring
(A) located on the bottom of the PVT cover and let
the water drain out. The PVT drain plug is shown
below.
Engine Ground
Inspect engine-to-frame ground cable connection (D). Be
sure the connection clean and tight.
2
2. To further expel water from the cover and to dry out
the PVT system, shift the transmission to neutral and
rev engine slightly to expel the moisture and air-dry
the belt and clutches. Allow engine RPM to settle to
idle speed, shift transmission to lowest available
range and test for belt slippage. Operate ATV in
lowest available range for a short period of time until
PVT system is dry.
Due to the critical nature of the procedures outlined in
this chapter, Polaris recommends steering component
repair and adjustment be performed by an authorized
Polaris MSD-certified technician when replacing worn
or damaged steering parts. Use only genuine Polaris
replacement parts.
The steering components should be checked periodically
for loose fasteners, worn tie rod ends, and damage. Also
check to make sure all cotter pins are in place. If cotter
pins are removed, they must not be re-used. Always use
new cotter pins.
Replace any worn or damaged steering components.
Steering should move freely through entire range of
travel without binding. Check routing of all cables, hoses,
and wiring to be sure the steering mechanism is not
restricted or limited.
NOTE:Wheneversteeringcomponentsare
replaced, check front end alignment. Use only
genuine Polaris parts.
One of two methods can be used to measure toe
alignment. The string method and the chalk method. If
adjustment is required, refer to following pages for
procedure.
steering tie rod, pull in all directions feeling for
movement.
• Repeat inspection for inner tie rod end on steering
post.
• Replace any worn steering components. Steering
should move freely through entire range of travel
without binding.
• Elevate front end of machine so front wheels are
off the ground. Check for any looseness in front
hub / wheel assembly by grasping the tire firmly at
top and bottom first, and then at front and rear. Try
to move the wheel and hub by pushing inward and
pulling outward.
• If abnormal movement is detected, inspect the hub
and wheel assembly to determine the cause
(possible loose wheel nuts or loose front hub
components).
NOTE: Properly raise and support vehicle to
check the front steering and suspension.
2
• Refer to the Body/Steering Chapter 5 or Final
Drive Chapter 7 for service procedures.
2. Set handlebars in a straight ahead position and
secure handlebars in this position.
3. Place a chalk mark on the center line of the front tires
approximately 10" (25.4 cm) from the floor or as
close to the hub/axle center line as possible.
NOTE: It is important that the height of both
marks be equally positioned in order to get an
accurate measurement.
4. Measure the distance between the marks and record
the measurement. Call this measurement “A”.
5. Rotate the tires 180° by moving vehicle forward or
backward. Position chalk marks facing rearward,
even with the hub/axle centerline.
6. Again measure the distance between the marks and
record. Call thismeasurement “B”. Subtract
measurement “B” from measurement “A”. The
difference between measurements “A” and “B” is the
vehicle toe alignment. The recommended vehicle toe
tolerance is 1/8" to 1/4" (.3 to .6 cm) toe out. This
means the measurement at the front of the tire (A) is
1/8" to 1/4" (.3 to .6 cm) wider than the measurement
at the rear (B).
Toe Alignment
If toe alignment is incorrect, measure the distance
between vehicle center and each wheel. This will tell you
which tie rod needs adjusting.
NOTE:Be sure handlebars are straight ahead
beforedeterminingwhichtierod (s)need
adjustment.
CAUTION
During tie rod adjustment, it is very important that the
following precautions be taken when tightening tie rod
end jam nuts. If the rod end is positioned incorrectly it
will not pivot, and may break.
To Adjust Toe Alignment:
• Hold tie rod end to keep it from rotating.
• Loosen jam nuts at both end of the tie rod.
• Shorten or lengthen the tie rod until alignment is as
required to achieve the proper toe setting as
specified.
• IMPORTANT: When tightening the tie rod end jam
nuts, the rod ends must be held parallel to prevent
rod end damage and premature wear. Damage
may not be immediately apparent if done
incorrectly. See illustration.
• After alignment is complete, torque jam nuts to
specification.
The exhaust pipe must be periodically purged of
accumulated carbon as follows:
WARNING
* Do not perform clean-out immediately after the engine
has been run, as the exhaust system becomes very
hot. Serious burns could result from contact with hot
exhaust components.
* To reduce fire hazard, make sure that there are no
combustible materials in the area when purging the
spark arrestor.
* Wear eye protection.
* Do not stand behind or in front of the vehicle while
purging the carbon from the spark arrestor. Never run
the engine in an enclosed area.
* Exhaust contains poisonous carbon monoxide gas.
* Do not go under the machine while it is inclined. Set
the hand brake and block the wheels to prevent roll
back.
Failure to heed these warnings could result in serious
personal injury or death.
3. If some carbon is expelled, cover the exhaust outlet
and rap on the pipe around the clean out plugs while
revving the engine several more times.
2
4. If particles are still suspected to be in the muffler,
back the machine onto an incline so the rear of the
machine is one foot higher than the front. Set the
hand brake and block the wheels. Make sure the
machine is in neutral and repeat Steps 2 and 3. See
‘WARNING’.
5. If particles are still suspected to be in the muffler,
drive the machine onto the incline so the front of the
machine is one foot higher than the rear. Set the
hand brake and block the wheels. Make sure the
machine is in neutral and repeat Steps 2 and 3. See
‘WARNING’.
1. Remove the clean out plugs located on the bottom of
the muffler as shown
2. Place the transmission in neutral and start the
engine. Purge accumulated carbon from the system
by momentarily revving the engine several times.
6. Repeat Steps 2 through 5 until no more particles are
expelled when the engine is revved.
7. Stop the engine and allow the arrestor to cool.
8. Reinstall the clean out plugs.
Brake System Inspection
The following checks are recommended to keep the
brake system in good operating condition. Service life of
brake system components depends on operating
conditions. Inspect brakes in accordance with the
maintenance schedule and before each ride.
• Keep fluid level in the master cylinder reservoir to
the indicated level inside reservoir.
• Use Polaris DOT 4 Brake Fluid
• Use Polaris DOT 4 Brake Fluid
2.34
• Check brake for excessive travel or spongy feel.
• Check brake system for fluid leaks.
• Check friction pads for wear, damage or
looseness.
Pads should be changed when the friction material is
worn beyond the service limit.
Brake Pad Service Limit:
.180" (4.6 mm)
Brake Hose Inspection
Check brake system hoses and fittings for cracks,
deterioration, abrasion, and leaks. Tighten any loose
fittings and replace any worn or damaged parts.
Auxiliary Brake Testing
The auxiliary brake should be checked for proper
function.
2
1. Support the rear wheels off the ground.
2. While turning the rear wheels by hand, apply the
auxiliary foot brake. This brake should not stop the
wheels from turning until the lever is half way
between its rest position and bottoming on the
footrest.
Use the following procedure to inspect the hydraulic
auxiliary (foot) brake system and adjust or bleed if
necessary:
First, check foot brake effectiveness by applying 50 lb.
(approx.) downward force on the pedal. The top of the
pedal should be at least 1 inch, (25.4mm) above the
surface of the footrest.
If less than one inch, two things must be examined:
Free Play:
Suspension: Spring Preload Adjustment
Operator weight and vehicle loading affect suspension
spring preload requirements. Adjust as necessary. Use
Shock Spanner Wrench (PN 2870872) to adjust the rear
springs.
Front Suspension
• Compressandreleasefrontsuspension.
Dampening should be smooth throughout the
range of travel.
• Check all front suspension components for wear or
damage.
• Inspect front strut cartridges for leakage.
Rear Suspension
• Compressandreleaserearsuspension.
Dampening should be smooth throughout the
range of travel.
• Check all rear suspension components for wear or
damage.
• Inspect shock for leakage.
Foot Brake Freeplay:
1/8 - 1/4 inch (3.2 - 6.35 mm)
If free play is excessive, inspect pedal, linkage, and
master cylinder for wear or damage and replace any
parts as needed.
Bleeding:
If free play is correct and brake pedal travel is still
excessive, air may be trapped somewhere in the system.
Bleed the hydraulic auxiliary brake system in a
conventional manner, following the procedure outlined in
Brake Chapter 9.
Inspect the CV shaft boots in the front and rear of the
ATV for damage, tears, wear, or leaking grease. If the
rubber boot exhibits any of these symptoms, replace the
boot. Refer to Chapter 7 for CV boot replacement, or
have your Polaris dealer replace the boot.
ATV Controls
Check controls for proper operation, positioning and
adjustment.
Brake control and switch must be positioned to allow
brake lever to travel throughout entire range without
contacting switch body.
Wheel Inspection
Inspect all wheels for runout or damage. Check wheel
nuts and ensure they are tight. Do not over tighten the
wheel nuts.
Periodically inspect the torque of all fasteners in
accordance with the maintenance schedule. Check that
all cotter pins are in place. Refer to specific fastener
torques listed in each chapter.
Wheel Removal: Front Or Rear
1. Stop the engine, place the transmission in gear and
lock the parking brake.
2. Loosen the wheel nuts slightly.
3. Elevate the side of the vehicle by placing a suitable
stand under the footrest frame.
Wheel Installation
1. With the transmission in park and the parking brake
locked, place the wheel in the correct position on the
wheel hub. Be sure the valve stem is toward the
outside and rotation arrows on the tire point toward
forward rotation.
2. Attach the wheel nuts and finger tighten them.
3. Lower the vehicle to the ground.
4. Securely tighten the wheel nuts to the proper torque
listed in the table
CAUTION
Improperly installed wheels could affect vehicle
handling and tire wear. On vehicles with tapered rear
wheel nuts, make sure tapered end of nut goes into
Following Components can be serviced or removed with
the engine installed:
• Flywheel
• Alternator (Stator)
• Starter Motor/Drive
• Cylinder Head
• Cylinder
• Piston/Rings
• Camshaft
• Rocker Arms
• Oil pump/Water Pump/Oil Pump Drive Gear
• Gear Train Components
Following Components Require Engine Removal for
service:
• Counterbalance Shaft or Bearings
• Connecting Rod
• Crankshaft
• Crankshaft Main Bearings
• Crankcase
Cooling System Specifications
APPROXIMATE
CONDITION
Hot light ON
Fan Off296Ω - 316Ω
Fan On236Ω - 251Ω
System
Capacity
Radiator Cap
Pressure Relief
Recommended Coolant
Use only high quality antifreeze/coolant mixed with
distilled water in a 50/50 or 60/40 ratio, depending on
freeze protection required in your area. CAUTION: Using
tap water in the cooling system will lead to a buildup of
deposits which may restrict coolant flow and reduce heat
dissipation, resulting in possible engine damage. Polaris
Premium 60/40 Antifreeze/Coolant is recommended for
use in all cooling systems and comes pre-mixed, ready
to use.
READING
(MIN.-MAX)
178Ω - 190Ω
Refer To Chapter 1 Specifications
13 PSI
TEMPERATURE
215° F (108° C)
180° F (82° C)
195° F (91° C)
Piston Identification
Four stroke engine rings have a rectangular profile. See
“PISTON RING INSTALLED GAP” for ring installation.
Use the information below to identify pistons and rings.
Never remove filler cap when engine is warm or hot.
The cooling system is under pressure and serious
burns may result. Allow the engine and cooling system
to cool before servicing.
System Pressure Test
1. Remove radiator cap cover located under the
storage box access panel. See Chapter 5.
2. Remove recovery bottle hose from coolant filler.
3. Connect a Mity Vac™ (PN 2870975) to radiator and
pressurize system to 10 PSI (68.9 kpa). The system
must retain 10 lbs of pressure for five minutes or
longer. If pressure loss is evident within five minutes,
check radiator, all cooling system hoses and clamps,
or water pump seal.
Filler Cap Pressure Test
4. Remove filler cap and test cap using a commercially
available cap tester.
5. The filler cap relief pressure is 13 psi. Replace cap if
it does not meet this specification.
Coolant Air Bleeding Procedure
Use this procedure when a unit overheats and no
apparent leaks in the cooling system are found.
NOTE: If the coolant level is LOW in the radiator, or
if there are leaks in the system, the coolant system
will not draw coolant from the reservoir tank.
1. Park machine on a flat surface. Remove filler cap
and top off coolant. With the cap removed, start and
idle machine for 5-10 minutes until steam is visible in
the filler neck area.
2. Stop the engine and let cool for a few minutes or until
an air bubble is seen at the filler neck, or there is a
dropping of the coolant level indicating that coolant
has been pulled into the system.
NOTE: Slowly squeezing the filler neck/coolant
return hoses will aid in purging the system of air.
Pump the hose using your hand several times.
Elevating the rear of the ATV with a floor jack
(rear tires 4-6”, off the ground) also aids the
purging of air from the system.
3. Repeat Steps 1 and 2 until no more coolant is pulled
into the system.
4. To test, install the radiator cap and idle machine until
fan comes on. Make sure the fan comes on before
the hot light.
Always wear safety glasses and proper shop clothing
when performing the procedures in this manual. Failing
to do so may lead to possible injury or death.
1. Clean work area.
2. Thoroughly clean ATV engine and chassis.
3. Disconnect battery (-) negative cable.
4. Remove the following parts as required:
• Seat
• Left and right side covers (refer to Chapter 5)
• Fuel tank covers
• Fuel tank (refer to Chapter 4)
• Springs from exhaust pipe and remove pipe.
5. Drain coolant and engine oil.
6. Remove air pre-cleaner and duct.
7. Remove airbox.
8. Disconnect the throttle body sensor (C) and T-BAP
sensor (D). Remove throttle body (A). Insert a shop
towel into the engine intake to prevent dirt from
entering the ports.
9. Relieve the fuel pressure in the fuel rail (refer to
Chapter4,“FUELINJECTION”)forproper
procedure. Carefully remove the fuel rail (B) and
injectors.
11. Remove the crank position sensor (E) located on the
mag cover.
12. Remove the air breather line.
13. Disconnect the coolant hoses. Properly dispose of
any antifreeze from the engine or hoses.
14. Refer to PVT System Chapter 6 to remove outer
clutch cover, drive belt, drive clutch, driven clutch,
and inner cover (F).
10. Disconnect spark plug high tension leads.
3.18
15. When removing starter cables, note and mark
ground cable and positive (+) cable mounting angle
and locations. Remove cables.
16. Remove transmission linkage rod from gear selector
and secure out of the way.
17. Disconnect coolant temperature sensor wire located
on the cylinder.
19. Remove all engine mount nuts and / or engine mount
plates. Remove the frame brace (G) from the front
left side of the frame.
20. Remove the engine from the left side of the frame.
Engine Installation Notes
After the engine is installed in the frame, review this
checklist and perform all steps that apply:
General Items
1. Install previously removed components using new
gaskets, seals, and fasteners where applicable.
2. Perform regular checks on fluid levels, controls, and
all important areas on the vehicle as outlined in the
daily pre-ride inspection checklist (refer to Chapter 2
or the Owner's Manual).
PVT System
3. Adjust center distance of drive and driven clutch.
(Chapter 6)
4. Adjust clutch offset, alignment, and belt deflection.
(Chapter 6)
5. Clean clutch sheaves thoroughly and inspect inlet
and outlet ducts for proper routing and sealing.
(Chapter 6)
Transmission
6. Inspect transmission operation and adjust linkage if
necessary. Refer to Chapter 2 and Chapter 8.
Exhaust
7. Replace exhaust gaskets. Seal connections with
high temp silicone sealant.
8. Check to be sure all springs are in good condition.
Bleed Cooling System
NOTE: This cooling system contains vent lines
to help purge trapped air during filling. Bleeding
generally should not be necessary.
3
NOTE: Use caution when lifting the engine out
of frame. Use an engine lift or other means if the
engine is too heavy to be lifted manually.
9. Remove radiator cap and slowly add coolant to the
bottom of filler neck.
10. Fill coolant reservoir tank to full mark.
11. Install radiator cap and gently squeeze coolant
hoses to force any trapped air out of system.
12. Again, remove radiator cap and slowly add coolant to
the bottom of fill neck if needed.
3.19
ENGINE
13. Start engine and observe coolant level in the
radiator. Allow air to purge and top off as necessary.
Reinstall radiator cap and bring engine to operating
temperature. After engine is cool, check level in
reservoir tank and add coolant if necessary.
NOTE: Should the reservoir tank become empty,
it will be necessary to refill at the radiator and
repeat the bleeding procedure.
Engine Break-In Period
The break-in period for a Polaris ATV engine is
defined as the first ten hours of operation, or the time
it takes to use two full tanks of gasoline. No single
action on your part is as important as a proper breakin period. Careful treatment of a new engine will
result in more efficient performance and longer life
for the engine. Perform the following procedures
carefully.
CAUTION
Use only Polaris PS4 2W/50 synthetic oil or equivalent.
Never substitute or mix oil brands. Serious engine
damage and voiding of warranty can result.
Do not operate at full throttle or high speeds for
extended periods during the first three hours of use.
Excessive heat can build up and cause damage to
close fitted engine parts.
Cylinder Hone Selection And Honing
Procedure
CAUTION
A hone which will straighten as well as remove material
from the cylinder is very important. Using a common
spring loaded glaze breaker for honing is not advised
for nicasil cylinders.
Polaris recommends using a rigid hone or arbor honing
machine. Cylinders may be wet or dry honed depending
upon the hone manufacturer's recommendations.
Wet honing removes more material faster and leaves a
more distinct pattern in the bore.
Cylinders may be wet or dry honed depending upon the
hone manufacturer’s recommendations. Wet honing
removes more material faster and leaves a more distinct
pattern in the bore.
14. Fill fuel tank with unleaded or leaded fuel which has
a minimum pump octane number of 87= (R+ M)/2.
15. Check oil reservoir level indicated on dipstick. Add oil
if necessary (Refer to Chapter 2, “Engine Oil Level” ).
16. Drive slowly at first to gradually bring engine up to
operating temperature.
17. Vary throttle positions. Do not operate at sustained
idle or sustained high speed.
18. Perform regular checks on fluid levels, controls and
all important bolt torques. Pull only light loads during
initial break in.
19. Pull only light loads during initial break-in.
20. Change break in oil and filter at 20 hours or 200
miles.
A finished cylinder should have a cross-hatch pattern to
ensure piston ring seating and to aid in the retention of
the fuel/oil mixture during initial break in. Hone cylinder
according to hone manufacturer's instructions, or these
guidelines:
• Honing should be done with a diamond hone.
Cylinder could be damaged if the hone is not hard
enough to scratch the nicasil lining.
• Use a motor speed of approximately 300-500
RPM, run the hone in and out of the cylinder
rapidly until cutting tension decreases. Remember
to keep the hone drive shaft centered (or cylinder
centered on arbor) and to bring the stones
approximately 1/2, (1.3 cm) above and below the
bore at the end of each stroke.
• Release the hone at regular intervals and inspect
the bore to determine if it has been sufficiently deglazed, and to check for correct cross-hatch.
NOTE: Do not allow cylinder to heat up during
honing.
• After honing has been completed, inspect cylinder
for thinning or peeling.
If cylinder wear or damage is excessive, it will be
necessary to replace the cylinder. The cylinders are lined
with a nicasil coating and are not repairable. Hone only
enough to de-glaze the outer layer of the cylinder bore.
Cleaning the Cylinder After Honing
It is very important that the cylinder be thoroughly
cleaned after honing to remove all grit material. Wash the
cylinder in a solvent, then in hot, soapy water. Pay close
attention to areas where the cylinder sleeve meets the
aluminum casting. Use electrical contact cleaner if
necessary to clean these areas. Rinse thoroughly, dry
with compressed air, and oil the bore immediately with
Polaris Lubricant.
3
IMPORTANT: Clean the cylinder after honing
If cylinder wear or damage is excessive, it will be
necessary to replace the cylinder. The cylinders are lined
with a nicasil coating and are not repairable. Hone only
enough to de-glaze the outer layer of the cylinder bore.
This chart describes the flow of oil through the engine. Beginning in the crankcase sump, the oil is drawn through an oil
galley to the feed side of the oil pump. The oil is then pumped through the oil filter. If the oil filter is obstructed, a bypass
valve contained in the filter allows oil to bypass the filter element. At this point, the oil is supplied to the main oil galley
through a crankcase passage. Oil is then diverted three ways from the main oil galley, with the first path entering the
camshaft bores, onto the rear balance shaft journal and then draining back into the crankcase sump. The second oil
path from the main oil galley feeds the lifter bores and then drains back to the crankcase sump. The third oil path flows
through a crankcase galley to the MAG side crankshaft journal and also to the front balance shaft journal and onto the
crankcase sump. The oil pressure switch is fed off the main oil galley.
1. Mark or tag rocker arms in order of disassembly to
keep them in order for reassembly.
2. Inspect the wear pad at the valve end of the rocker
arm for indications of scuffing or abnormal wear. If
the pad is grooved, replace the rocker arm.
CAUTION
Do not attempt to true this surface by grinding.
Push Rods
1. Clean push rods (A) in a suitable solvent. Blow dry
push rods with compressed air.
2. Use compressed air to confirm the oil passage is
clear in the center of the push rod.
WARNING
Always wear safety glasses when working with
compressed air to prevent personal injury.
3. Check the ends of the push rods (A) for nicks,
grooves, roughness or excessive wear.
4. The push rods (A) can be visually checked for
straightness while they are installed in the engine by
rotating them with the valve closed. Push rods can
also be checked with a dial indicator or rolled across
a flat surface to check for straightness.
5. If the push rod (A) is visibly bent, it should be
replaced.
3
3. Check the rocker arm pad and fulcrum seat for
excessive wear, cracks, nicks or burrs.
1. Loosen the six cylinder head bolts evenly 1/8 turn
each in a criss-cross pattern until loose.
2. Remove bolts (A) and tap cylinder head (B) lightly
with a soft face hammer until loose. CAUTION: Tap
only in reinforced areas or on thick parts of cylinder
head casting to avoid damaging the head or cylinder.
3. Remove cylinder head (B) and head gasket (C) from
the cylinder (D).
Cylinder Head Warp
1. Lay a straight edge (A) across the surface of the
cylinder head (B) at several different points and
measure warp by inserting a feeler gauge between
the straight edge and the cylinder head surface. If
warp exceeds the service limit, replace the cylinder
head.
Cylinder Head Inspection
Thoroughly clean cylinder head surface to remove all
traces of gasket material and carbon.
NOTE: The following procedure is only for servicing
the top end of the valve train when replacing valve
springs or replacing valve seals.
In some cases the valve train can be serviced while the
cylinder head is still on the engine. Keep all parts in order
with respect to their location in the cylinder head.
WARNING
Wear eye protection or a face shield during cylinder
head disassembly and reassembly.
1. Having already removed the valve cover, rocker
arms and pushrods, align the cylinder to be worked
on at top dead center (TDC). Install the Valve
Pressure Hose (PU-45652) into the spark plug hole.
Hook the hose to an air compressor and supply 50 to
100 psi to the hose. This will seat the valves during
valve spring removal. Do not remove air from the
hose at anytime until reassembly is completed.
2. Using the Valve Spring Compressor (PU-45257),
compress the valve spring and remove the valve
keepers. NOTE: A small parts magnet (A) can aid in
the removal of the retainers (B).
Cylinder Head Disassembly
1. Carefully remove the cylinder components. Place the
hydraulic lifters (C), pushrods (D), and rocker arms
(E) in a safe, clean area.
3
IMPORTANT: To prevent damage to the valve
seals, do not compress the valve spring more
than is needed to remove the valve keepers.
2. Measure free length of spring with a Vernier caliper.
Compare to specifications. Replace spring if
measurement is out of specification.
Valve Spring Free Length:
Std: 1.735" (44.069 mm)
3. Remove valve guide seals.
NOTE: It is recommended to replace seals
whenever the cylinder head is disassembled.
Hardened, cracked or worn valve seals will cause
excessive oil consumption and carbon buildup.
4. Mark the valves with a white pen. Remove the valves
from the cylinder head. This will ensure that the
valvesareproperlyplacedduringengine
reassembly.
1. Remove all carbon from valves with a soft wire wheel
or brush.
2. Check valve face for runout, pitting, and burnt spots.
To check for bent valve stems, mount valve in a drill
or use “V” blocks and a dial indicator.
3. Check end of valve stem for flaring, pitting, wear or
damage (A).
5. Measure diameter of valve stem with a micrometer in
three places, then rotate 90 degrees and measure
again (six measurements total). Compare to
specifications.
3
Valve Stem Diameter:
Intake: 0.2356" + 0.00039"
(5.985 + 0.01 mm)
Exhaust: 0.2351" + 0.00039"
(5.972 + 0.01 mm)
4. Inspect split keeper groove for wear or flaring of the
keeper seat area (B). NOTE: The valves can be refaced or end ground, if necessary. They must be
replaced if extensively worn, burnt, bent, or
damaged.
6. Measure valve guide (C) inside diameter at the top
middle and end of the guide using a small hole
gauge and a micrometer. Measure in two directions.
Valve Guide I.D.:
0.23672" + 0.000295"
(6.0617 + 0.0075 mm)
7. Subtract valve stem measurement from the valve
guide measurement to obtain stem to guide
clearance. NOTE: The valve guides cannot be
replaced. Be sure to measure each guide and valve
combination individually.
Combustion Chamber
1. Clean all accumulated carbon deposits from
combustion chamber and valve seat area with
carbon cleaner and a soft plastic scraper.
NOTE: Do not use a wire brush, metal scraper,
or abrasive cleaners to clean the bottom of the
cylinder head. Extensive damage to the cylinder
head may result. Wear safety glasses during
cleaning.
Valve Seat Reconditioning
NOTE: Polaris recommends that the work be done
by a local machine shop that specializes in this area.
The cylinder head valve guides cannot be replaced.
3.30
Wear eye protection or a face shield during cylinder
Valve Seat Inspection
Inspect valve seat in cylinder head for pitting, burnt
spots, roughness, and uneven surface. If any of the
above conditions exist, the valve seat must be
reconditioned. If the valve seat is cracked the cylinder
head must be replaced.
Follow the manufacturers instructions provided with the
valve seat cutters in the Cylinder Head Reconditioning
Kit (available commercially). Abrasive stone seat
reconditioning equipment can also be used. Keep all
valves in order with their respective seat.
NOTE: Valve seat width and point of contact on the
valve face is very important for proper sealing. The
valve must contact the valve seat over the entire
circumference of the seat, and the seat must be the
proper width all the way around. If the seat is
uneven, compression leakage will result. If the seat
is too wide, seat pressure is reduced, causing
carbon accumulation and possible compression
loss. If the seat is too narrow, heat transfer from
valve to seat is reduced. The valve may overheat and
warp, resulting in burnt valves.
1. Install pilot into valve guide.
4. Inspect the cut area of the seat:
* If the contact area is less than 75% of the
circumference of the seat, rotate the pilot 180° and
make another light cut.
* If the cutter now contacts the uncut portion of the
seat, check the pilot. Look for burrs, nicks, or runout.
If the pilot is bent it must be replaced.
* If the contact area of the cutter is in the same place,
the valve guide is distorted from improper installation
* If the contact area of the initial cut is greater than
75%, continue to cut the seat until all pits are
removed and a new seat surface is evident. NOTE:
Remove only the amount of material necessary to
repair the seat surface.
5. To check the contact area of the seat on the valve
face, apply a thin coating of Prussian Blue® paste to
the valve seat. If using an interference angle (46°)
apply black permanent marker to the entire valve
face (A).
3
2. Apply cutting oil to valve seat and cutter.
3. Place 46° cutter on the pilot and make a light cut.
6. Insert valve into guide and tap valve lightly into place
a few times.
3.31
ENGINE
7. Remove valve and check where the Prussian Blueä
indicates seat contact on the valve face. The valve
seat should contact the middle of the valve face or
slightly above, and must be the proper width.
* If the indicated seat contact is at the top edge of the
valve face and contacts the margin area (B) it is too
high on the valve face. Use the 30° cutter to lower
the valve seat.
* If too low, use the 60° cutter to raise the seat. When
contact area is centered on the valve face, measure
seat width.
* If the seat is too wide or uneven, use both top and
bottom cutters to narrow the seat.
* If the seat is too narrow, widen using the 45° cutter
and re-check contact point on the valve face and
seat width after each cut.
NOTE: When using an interference angle, the
seat contact point on the valve will be very
narrow, and is a normal condition. Look for an
even and continuous contact point all the way
around the valve face. (B)
Valve Seat Width:
Intake
Std: .028" (.7 mm)
Limit: .055" (1.4 mm)
Exhaust
Std: .039I (1.0 mm)
Limit: .071" (1.8 mm)
8. Clean all filings from the area with hot soapy water,
rinse, and dry with compressed air.
9. Lubricate the valve guides with clean engine oil, and
apply oil or water based lapping compound to the
face of the valve.
NOTE:Lapping is not required with an
interference angle valve job.
10. Insert the valve into its respective guide and lap
using a lapping tool or a section of fuel line
connected to the valve stem.
11. Rotate the valve rapidly back and forth until the cut
sounds smooth. Lift the valve slightly off of the seat,
rotate 1/4 turn, and repeat the lapping process. Do
this four to five times until the valve is fully seated,
and repeat process for the other valve(s).
12. Thoroughly clean cylinder head and valves.
Cylinder Head Reassembly
NOTE: Assemble the valves one at a time to
maintain proper order.
1. Apply engine oil to valve guides and seats.
2. Coat valve stem with molybdenum disulfide grease
or 2W-50 Synthetic oil.
3. Install valve carefully with a rotating motion to avoid
damaging valve seal.
4. Valve seals should be installed after the valves are in
the head to avoid valve seal damage. Install new
valve seals on valve guides.
3
5. Dip valve spring and retainer in clean engine oil and
install.
6. Place retainer on spring and install Valve Spring
Compressor (PU-45257). Install split keepers with
the gap even on both sides.
NOTE: A small magnet can aid in installation of
the keepers.
7. Repeat procedure for remaining valves. When all
valves are installed, tap lightly with soft faced
hammer on the end of the valves to seat the split
keepers.
IMPORTANT: To prevent damage to the valve
seals, do not compress the valve spring more
than necessary to install the keepers.
Valve Sealing Test
1. Clean and dry the combustion chamber area (A).
2. Pour a small amount of clean solvent onto the intake
port and check for leakage around each intake valve.
The valve seats should hold fluid with no seepage.
3. Repeat for exhaust valves by pouring fluid into
exhaust port.
Cylinder Removal
1. Follow engine disassembly procedures to remove
rocker cover and cylinder head.
2. Tap cylinder (A) lightly with a rubber mallet in the
reinforced areas only until loose.
3. Rock cylinder forward and backward while lifting it
from thecrankcase, supporting pistonsand
connecting rods. Support pistons with Piston Support
Block (PN 2870390).
1. Remove the valve lifter's by reaching into the
crankcase and pushing the lifter up through the lifter
bore by hand.
2. Thoroughly clean the lifters in cleaning solvent and
wipe them with a clean lint-free cloth.
3. Mark the lifters with a white pen if using the lifters for
reassembly. This will ensure that the lifters are
properly placed during engine reassembly.
4. Check the lifters for wear or scores.
5. Check the bottom end of lifter to make sure that it
has a slight convex.
6. If the bottom surface has worn flat, it may be used
with the original camshaft only.
3
IMPORTANT: Lifters that are scored, worn, or if
the bottom is not smooth should be replaced
with new lifters and cam as an assembly. If
replacing the lifters, the camshaft should also be
replaced.
1. Remove circlip (A). Mark the piston with a white pen
to ensure proper orientation (if reused) during
assembly.
IMPORTANT: If the pistons are to be reused,
reassemble the pistons in the same cylinder and
direction from which they were removed.
New pistons are non-directional and can be
placed in either cylinder.
2. Remove piston circlip and push piston pin out of
piston. If necessary, heat the crown of the piston
slightly with a propane torch. CAUTION: Do not
apply heat to the piston rings. The ring may lose
radial tension.
3. Remove top compression ring:
*Using a piston ring pliers: Carefully expand ring
and lift it off the piston. CAUTION: Do not expand
the ring more than the amount necessary to remove
it from the piston, or the ring may break.
*By hand: Placing both thumbs as shown, spread
the ring open and push up on the opposite side. Do
not scratch the ring lands.
4. Repeat procedure for second ring.
5. Remove the oil control ring.
The oil control ring is a three piece design consisting
of a top and bottom steel rail and a center expander
section. The top rail has a locating tab on the end
which fits into a notch (B) in the upper oil ring land of
the piston.
To Remove:
A) Remove the top rail first followed by the bottom
rail.
4. Inspect cylinder for taper and out of round with a
telescoping gauge or a dial bore gauge. Measure in
two different directions, front to back and side to
side, on three different levels (1/2, down from top, in
the middle, and 1/2, up from bottom). Record
measurements. If cylinder is tapered or out of round
beyond .002", the cylinder must be replaced.
Piston-To-Cylinder Clearance
Measure piston outside diameter at a point 5 mm up from
the bottom of the piston at a right angle to the direction of
the piston pin.
Subtract this measurement from the maximum cylinder
measurement obtained in Step 5.
2. Measure piston pin O. D. Replace piston and/or
piston pin if out of tolerance.
4. Measure piston ring to groove clearance by placing
the ring in the ring land and measuring with a
thickness gauge. Replace piston and rings if ring-togroove clearance exceeds service limits.
3
Piston Ring Installed Gap
1. Place each piston ring (A) inside cylinder (B) using
piston to push ring squarely into place as shown.
(See next page)
NOTE: Ring should be installed with the mark
facing upward.
2. Measure installed gap with a feeler gauge (C) at both
the top and bottom of the cylinder. REMINDER: A
difference in end gap indicates cylinder taper. The
cylinder should be measured for excessive taper and
out of round.
3.39
ENGINE
3. If the bottom installed gap measurement exceeds the
service limit, replace the rings. If ring gap is smaller
than the specified limit, file ring ends until gap is
within specified range.
IMPORTANT: Always check piston ring installed
gap after re-boring a cylinder or when installing
new rings. A re-bored cylinder should always be
scrubbed thoroughly with hot soapy water,
rinsed, and dried completely. Wipe cylinder bore
with oil immediately to remove residue and
prevent rust.
Starter Drive/Bendix Removal Inspection
1. Remove stator housing bolts and remove housing.
2. Remove the flywheel nut and washer. Install
Flywheel Puller (PN 2871043) and remove flywheel.
NOTE: Do not thread the puller bolts into the
flywheel more than 1/4, or stator coils may be
damaged.
3. Remove starter bendix assembly. Note the thrust
washers located on both sides of the bendix.
5. After the bendix is removed, tap on the starter
assembly with a soft faced mallet to loosen the
starter from the crankcase.
6. Inspect gear teeth on starter drive (B). Replace
starter drive if gear teeth are cracked, worn, or
broken.
7. Inspect the bendix bushing (C) in the mag cover for
wear. Replace as needed.
4. Inspect the thrust washer for wear or damage and
replace if necessary.