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 'Publications Question'.
Consumers, please provide your feedback in writing to: Polaris Industries Inc. ATTN: Service Publications Department,
2100 Hwy 55, Medina, MN 55340.
Throughout this manual, important information is brought to your attention by the following symbols:
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.
SAFETY ALERT CAUTION indicates a potential hazard that may result in minor personal injury or damage to the vehicle.
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 PRODUCTS 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
The machine model number must be used with any correspondence regarding warranty or service.
Engine Designation Number
1204276 RZR800HO-11...................................................................Twin Cylinder, Liquid Cooled, OHV 4 Stroke, Electric Start
VIN Identification
V e hicle and Engine Serial Number Location
Whenever corresponding about a Polaris ORV, refer to the vehicle identification number (VIN) and the engine serial number.
The VIN can be found stamped on a portion of the front left frame rail, close to the left front wheel (see Figure 1-1).
The engine model and serial number can be found on a decal applied to the cylinder on the side of the engine (see Figure 1-2).
1.2
GENERAL INFORMATION
VEHICLE INFORMATION
Publication Numbers
ModelModel No.Owner’s ManualParts Manual
2011 RANGER RZR SWM11VE76AA99231229923264
NOTE: When ordering service parts be sure to use the correct parts manual.
NOTE: Polaris factory publications can be found at www.polarisindustries.com or purchased from
www.purepolaris.com.
SPECIAL TOOLS
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, SPX Corporation, by phone at 1-800-328-6657 or on-line at
http://polaris.spx.com/
.
1
1.3
GENERAL INFORMATION
GENERAL SPECIFICATIONS
MODEL: 2011 RANGER RZR SW
MODEL NUMBER: M11VE76AA
ENGINE NUMBER: 1204276
CategoryDimension / Capacity
Length112 in. / 284.5 cm
Width59 in. / 150 cm
Height72.5 in. / 184 cm
Wheel Base77 in. / 196 cm
Ground Clearance13 in. / 33 cm
Dry Weight1112 lbs. / 504 kg
Gross Vehicle Weight2148 lbs. / 974 kg
Front Storage Capacity25 lbs. / 11.3 kg
Cargo Box Capacity500 lbs. / 227 kg
Maximum Weight
Capacity (Payload)
Hitch Towing Capacity1500 lbs. / 680 kg
Hitch Tongue Capacity150 lbs. / 68 kg
(Includes rider(s), cargo, accessories
1000 lbs. / 454 kg
and trailer tongue weight)
1.4
GENERAL INFORMATION
MODEL: 2011 RANGER RZR SW
MODEL NUMBER: M11VE76AA
ENGINE NUMBER: 1204276
Engine
Platform
Engine Number1204276
Engine Displacement760cc H.O.
Number of Cylinders2
Bore & Stroke (mm)80 x 76.5 mm
Compression Ratio11:1
Compression Pressure165 - 185 psi
Engine Idle Speed1250 ± 200 RPM
Engine Max Operating RPM6600 ± 200 RPM
LubricationPressurized Wet Sump
Oil RequirementsPS-4 Plus Synthetic
Oil Capacity2 qts. / 1.9 liters
Coolant Capacity4.8 qts. / 4.5 liters
Overheat WarningInstrument Cluster Indicator
Exhaust SystemDual Headpipe / Single Silencer
Fuel System TypeBosch M17 EFI
Fuel DeliveryElectronic Fuel Pump (in tank)
Fuel Pressure45
Fuel FiltersSee Chapter 4
Fuel Capacity / Requirement
Alternator Max Output500 Watts @ 3000 RPM
Headlights2 - Halogen: Low 55 W / High 60 W
Tail / Brake2 - 6 Watts / 2 - 27 Watts
Starting SystemElectric Start
Ignition SystemBosch M17 (ECU Controlled)
Ignition Timing (Variable)3
Spark plug / GapRC7YC3 / .035 in. (0.9 mm)
Battery
Instrument TypeMultifunction Instrument Cluster
DC Outlet(2) Standard 12 Volt
Relays
Circuit BreakerFan Motor: 20 Amp
Fuses
H.O. Domestic Twin Cylinder,
Liquid Cooled, 4-Stroke
Fuel System
± 2 psi (310 ± 14 kPa)
7.25 gal. (27.4 liters)
87 Octane (minimum)
Electrical
° - 10° BTDC @ 1200 RPM
Yuasa YTX20HL /
18 Amp Hr. / 310 CCA / 12 Volt
Chassis / EFI / Fan
Fuel Pump / TURF / Blackout
Lights: 20 Amp
Fuel Pump: 10 Amp
Drive: 10 Amp
EFI: 20 Amp
Accessory: 20 Amp
Drivetrain
Transmission TypePolaris Automatic PVT
Drive Gear Ratio - Front Output
Reverse
Low
High
Drive Gear Ratio - Rear Output
Reverse
Low
High
Shift TypeIn Line Shift - H / L / N / R / P
Front Gearcase
Fluid Type / Capacity
Transmission: Main Gearcase
Fluid Type / Capacity
Transmission: Transfer Case
Fluid Type / Capacity
Rear Gearcase
Fluid Type / Capacity
Belt3211133
Steering / Suspension
Front Suspension / Shock
Front Travel12 in. / 30.5 cm
Rear Suspension / Shock
Rear Travel12 in. / 30.5 cm
Shock Preload Adjustment
Front / Rear
Toe Out1/8 - 1/4 in. (3 - 6.4 mm)
Wheels / Brakes
Front Wheel Size
Front Tire Type / Size
Rear Wheel Size
Rear Tire Type / Size
Tire Air Pressure - Front / Rear18 psi (124 kPa)
Brake - Front / Rear
Brake FluidDOT 4
Polaris Demand Drive Plus
Independent Dual A-arm
Rolled IRS w/Anti-Sway Bar
Threaded Spanner Wrench
Maxxis Bighorn / 26 x 9 R12
Maxxis Bighorn / 26 x 9 R12
8.3398:1
7.1474:1
2.8226:1
27.0003:1
23.1398:1
9.1381:1
6.75 oz. (200 ml)
Polaris AGL Plus
24 oz. (710 ml)
Polaris AGL Plus
14 oz. (414 ml)
Polaris Premium ADF
22 oz. (650 ml)
FOX
™ 2.0 Piggyback
FOX
™ 2.0 Piggyback
Adjustment
12 x 6 / Steel
12 x 6 / Steel
Foot Actuated - 4 Wheel
Hydraulic Disc
CLUTCH CHART
Meters
(Feet)
Altitude
0-1500
(0-5000)
1500-3700
(5000 - 12000)
Shift
Weight
23-62
(5632337)
23-58
(5632218)
Drive
Spring
Black
(7043594)
Black
(7043594)
Blk / Almond
Blk / Almond
1
Driven
Spring
(7043167)
(7043167)
1.5
GENERAL INFORMATION
MISC. SPECIFICATIONS AND CHARTS
Conversion Table
1.6
°C to °F:
9/5
(°C + 32) = °F °F to °C:
5/9
(°F - 32) = °C
Standard Torque Specifications
GENERAL INFORMATION
The following torque specifications are to be used only as a general guideline. There are exceptions in the steering, suspension, and
engine areas. Always consult the exploded views or each manual section for torque values of fasteners before using standard torque.
1
1.7
GENERAL INFORMATION
SAE Tap / Drill Sizes
Decimal Equivalents
Metric Tap / Drill Sizes
1.8
GENERAL INFORMATION
Glossary of Terms
ABDC: After bottom dead center.
ACV: Alternating current voltage.
Alternator: Electrical generator producing voltage alternating current.
ATDC: After top dead center.
BBDC: Before bottom dead center.
BDC: Bottom dead center.
BTDC: Before top dead center.
CC: Cubic centimeters.
Center Distance: Distance between center of crankshaft and center of driven clutch shaft.
Chain Pitch: Distance between chain link pins (No. 35 = 3/8" or 1 cm). Polaris measures chain length in number of pitches.
CI: Cubic inches.
Clutch Buttons: Plastic bushings which aid rotation of the movable sheave in the drive and driven clutch.
Clutch Offset: Drive and driven clutches are offset so that drive belt will stay nearly straight as it moves along the clutch face.
Clutch Weights: Three levers in the drive clutch which relative to their weight, profile and engine RPM cause the drive clutch to
close and grip the drive belt.
Crankshaft Run-Out: Run-out or "bend" of crankshaft measured with a dial indicator while crankshaft is supported between centers
on V blocks or resting in crankcase. Measure at various points especially at PTO.
DCV: Direct current voltage
CVT: Centrifugal Variable Transmission (Drive Clutch System)
DCV: Direct current voltage.
Dial Bore Gauge: A cylinder measuring instrument which uses a dial indicator. Good for showing taper and out-of-round in the
cylinder bore.
Electrical Open: Open circuit. An electrical circuit which isn't complete.
Electrical Short: Short circuit. An electrical circuit which is completed before the current reaches the intended load. (i.e. a bare wire
touching the chassis).
End Seals: Rubber seals at each end of the crankshaft.
Engagement RPM: Engine RPM at which the drive clutch engages to make contact with the drive belt.
ft.: Foot/feet.
Foot Pound: Ft. lb. A force of one pound at the end of a lever one foot in length, applied in a rotational direction.
g: Gram. Unit of weight in the metric system.
gal.: Gallon.
ID: Inside diameter.
in.: Inch/inches.
Inch Pound: In. lb. 12 in. lbs. = 1 ft. lb.
kg/cm²: Kilograms per square centimeter.
kg-m: Kilogram meters.
Kilogram/meter: A force of one kilogram at the end of a lever one meter in length, applied in a rotational di rection.
l or ltr: Liter.
lbs/in²: Pounds per square inch.
Left or Right Side: Always referred to based on normal operating position of the driver.
m: Meter/meters.
Mag: Magneto.
Magnetic Induction: As a conductor (coil) is moved through a magnetic field, a voltage will be generated in the wind ings.
Mechanical energy is converted to electrical energy in the stator.
mi.: Mile/miles.
mm: Millimeter. Unit of length in the metric system. 1 mm = approximately .040".
Nm: Newton meters.
OD: Outside diameter.
Ohm: The unit of electrical resistance opposing current flow.
oz.: Ounce/ounces.
Piston Clearance: Total distance between piston and cylinder wall.
psi.: Pounds per square inch.
PTO: Power take off.
PVT: Polaris Variable Transmission (Drive Clutch system)
qt.: Quart/quarts.
Regulator: Voltage regulator. Regulates battery charging system output at approx. 14.5 DCV as engine RPM increases.
Reservoir Tank: The fill tank in the liquid cooling system.
Resistance: In the mechanical sense, friction or load. In the electrical sense, ohms, resulting in energy conversion to heat.
RPM: Revolutions per minute.
Seized Piston: Galling of the sides of a piston. Usually there is a transfer of aluminum from the piston onto the cylinder wall.
Possible causes: 1) improper lubrication; 2) excessive temperatures; 3) insufficient piston clearance; 4) stuck piston rings.
Stator Plate: The plate mounted under the flywheel supporting the battery charging coils.
TDC: Top dead center. Piston's most outward travel from crankshaft.
Volt: The unit of measure for electrical pressure of electromotive force. Measured by a voltmeter in parallel with the circuit.
Watt: Unit of electrical power. Watts = amperes x volts.
WOT: Wide open throttle.
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 Pure 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.
Severe Use Definition
• 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 or see your dealer.
Break-In Period
The break-in period consists of the first 25 hours of operation, or the time it takes to use 14 gallons (53 liters) of fuel. Careful treatment
of a new engine and drive components will result in more efficient performance and longer life for these components.
• Drive vehicle slowly at first while varying the throttle position. Do not operate at sustained idle.
• Pull only light loads.
• Perform regular checks on fluid levels and other areas outlined on the daily pre-ride inspection checklist.
• Change both the engine oil and filter after 25 hours or one month.
• See “Owner’s Manual” for additional break-in information.
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: See information provided above.
E = Emission Control System Service (California).
NOTE: Inspection may reveal the need for replacement parts. Always use genuine Polaris parts.
Improperly performing the procedures marked could result in component failure and lead to serious injury or death.
Have an authorized Polaris dealer perform these services.
2.3
MAINTENANCE
Pre-Ride - 25 Hour Maintenance Interval
Maintenance Interval
Item
HoursCalendar
Steering-Pre-Ride-
Front Suspension-Pre-Ride-
Rear Suspension-Pre-Ride-
Tires-Pre-Ride-
Brake Fluid Level-Pre-Ride-
Brake Pedal Travel-Pre-Ride-
Brake Systems -Pre-Ride-
Wheels / Fasteners-Pre-Ride-
Frame Fasteners-Pre-Ride-
Engine Oil Level-Pre-Ride-
E
(whichever comes first)
Miles
Remarks
(KM)
Make adjustments as needed.
See Pre-Ride Checklist on Page 2.10.
Air Filter-Pre-Ride-Inspect; replace as needed
E
Coolant Level-Daily-
Head Lamp / Tail Lamp-Daily-
Air Filter-Weekly-Inspect; replace as needed
E
Brake Pad Wear10 H Monthly100 (160)Inspect periodically
Battery25 HMonthly250 (400)Check terminals; clean; test
Front Gearcase Oil
(Demand Drive Plus)
Rear Gearcase Oil
(ATV Angle Drive Fluid)
Transmission - Main
(AGL Gearcase Lubricant)
Transmission - Transfer
(AGL Gearcase Lubricant)
EEngine Breather Filter
(if equipped)
EEngine Oil Change
(Break-In Period)
25 HMonthly250 (400)Inspect level; change yearly
25 HMonthly250 (400)Inspect level; change yearly
25 HMonthly250 (400)Inspect level; change yearly
25 HMonthly250 (400)Inspect level; change yearly
25 HMonthly250 (400)Inspect; replace if necessary
25 H1 M250 (400)Perform a break-in oil change at one month
Check level daily, change coolant every 2
years
Check operation; apply dielectric grease if
replacing
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.
2.4
MAINTENANCE
50 - 300 Hour Maintenance Interval
Maintenance Interval
Item
EThrottle Cable / Throttle
Pedal
Throttle Body Air Intake
E
Ducts / Flange
General Lubrication50 H3 M500 (800)Lubricate all fittings, pivots, cables, etc.
50 H6 M300 (500)Inspect ducts for proper sealing / air leaks
Miles
(KM)
Inspect; adjust; lubricate; replace if
necessary
Inspect coolant strength seasonally;
pressure test system yearly
Check for leaks at fill cap, fuel line / rail, and
fuel pump. Replace lines every two years.
Perform a break-in oil change at 25 hours
or one month / always replace oil filter
when changing engine oil
Remarks
2
Cooling Hoses100 H12 M1000 (1600)Inspect for leaks
Engine Assembly Mounts100 H12 M1000 (1600)Inspect, torque to specification
Exhaust Muffler / Pipe100 H12 M1000 (1600)Inspect
Inspect for wear, routing, security; apply
Wiring100 H12 M1000 (1600)
Clutches (Drive and Driven)100 H12 M1000 (1600)Inspect; clean; replace worn parts
Front Wheel Bearings100 H12 M1000 (1600)Inspect; replace as needed
Shocks100 H--Visually inspect shock seals
Brake Fluid200 H24 M2000 (3200)Change every two years (DOT 4)
Spark Arrestor300 H36 M3000 (4800)Clean out
Shocks500 H12 M-Change shock oil and seals
Toe Adjustment-
Headlight Aim-Adjust as needed
dielectric grease to connectors subjected
to water, mud, etc.
Inspect periodically; adjust when parts are
replaced
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.
2.5
MAINTENANCE
Maintenance Quick Reference
III. #ItemLube Rec.MethodFrequency*
Change after 1st month or first
25 hours of operation, 100 hours
thereafter; Change more often
(25 hours) in severe duty
conditions or short trip cold
weather operation
1Engine Oil
Polaris PS-4 Plus
Performance Synthetic
4-Cycle Engine Oil
Add oil to proper level on
dipstick
2Engine CoolantPolaris 60/40 Coolant
3Brake FluidPolaris DOT 4 Brake Fluid
* More often under severe use, such as operated in water or under severe loads.
Maintain coolant level in
coolant reservoir bottle.
Maintain fluid level between
“MAX and “MIN” lines on the
master cylinder reservoir
Check level daily, change
coolant every 2 years
Check level during pre-ride
inspection; change fluid every
two years
2.6
MAINTENANCE
Maintenance Quick Reference, Continued.....
III. #ItemLube Rec.MethodFrequency*
4Front GearcasePolaris Demand Drive Plus
5Rear Gearcase
6Transmission
* More often under severe use, such as operated in water or under severe loads.
Polaris ATV Angle Drive
Fluid (ADF)
Polaris AGL Plus
Gearcase Lubricant
Add lubricant until it is visible
at the fill hole threads
Add lubricant until it is visible
at the fill hole threads
Add lubricant until it is visible
at the fill hole threads
Check level every 25 hours;
change fluid yearly
Check level every 25 hours;
change fluid yearly
Check level every 25 hours;
change lubricant yearly
2
2.7
MAINTENANCE
Grease Lubrication Points
There are grease fittings at each A-arms pivot point, each front or rear stabilizer bushing, and on the front propshaft yoke. Apply
grease until all traces of water have been purged out at each of these areas.
ItemRecommended LubeMethodFrequency
Front Propshaft Yoke
A-arm Pivot Bushings
Stabilizer Bar Bushings
Polaris Premium U-Joint Grease
Grease fittings every 500
miles (800 km).
Grease before long periods
of storage, and after
thoroughly washing or
submerging the vehicle.
2.8
MAINTENANCE
LUBRICANTS / SERVICE PRODUCTS
Polaris Lubricants, Maintenance and Service
Products
Part No.Description
Engine Lubricant
2870791Fogging Oil (12 oz. Aerosol)
2876244
2876245
2878068
2878069
2878070
2876160
PS-4 Plus Synthetic 4-Cycle Engine Oil
(Quart)
PS-4 Plus Synthetic 4-Cycle Engine Oil
(Gallon)
Gearcase / Transmission Lubricants
AGL Plus Gearcase Lubricant
(1 Qt.) (12 Count)
AGL Plus Gearcase Lubricant
(1 Gal.) (4 Count)
AGL Plus Gearcase Lubricant
(2.5 Gal.) (2 Count)
ATV Angle Drive Fluid
(8 oz.) (12 Count)
NOTE: Each item can be purchased separately at
your local Polaris dealer.
Part No.Description
Additives / Sealants / Thread Locking Agent s / Misc.
2871950
2871326
2870652Fuel Stabilizer (16 oz.) (12 count)
2872189DOT 4 Brake Fluid (12 count)
2871557Crankcase Sealant, 3-Bond 1215 (5 oz.)
NOTE: The number count indicated by each part
number in the table above indicates the number of
units that are shipped with each order.
Loctite™ Threadlock 242
(6 ml.) (12 count)
Premium Carbon Clean
(12 oz.) (12 count)
2
2872276
2877922
2877923
2870465Oil Pump for 1 Gallon Jug
2871312Grease Gun Kit
2871322
2871423
2871460Starter Drive Grease (12 Count)
2871515Premium U-Joint Lube (3 oz.) (24 Count)
2871551Premium U-Joint Lube (14 oz.) (10 Count)
2871329Dielectric Grease (Nyogel™)
ATV Angle Drive Fluid
(2.5 Gal) (2 Count)
Demand Drive Plus
(Quart)
Demand Drive Plus
(2.5 Gallon)
Grease / Specialized Lubricants
Premium All Season Grease
(3 oz. cartridge) (24 Count)
Premium All Season Grease
(14 oz. cartridge) (10 Count)
Coolant
287132360/40 Coolant (Gallon) (6 Count)
287153460/40 Coolant (Quart) (12 Count)
2.9
MAINTENANCE
Shift Cable
Mount
Dust Boot
Clevis Pin
Shift Cable
Lower
Jam Nut
Upper
Jam Nut
GENERAL VEHICLE INSPECTION
AND MAINTENANCE
Pre-Ride / Daily Inspection
Perform the following pre-ride inspection daily, and when
servicing the vehicle at each scheduled maintenance.
• Tires - check condition and pressures
• Fuel tank - fill to proper level
• All brakes - check operation and adjustment
• Throttle - check for free operation and closing
• Headlights/Taillights/Brakelights - also check operation
of all indicator lights and switches
• Ignition switch - check for proper function
• Wheels - check for tightness of wheel nuts and axle
nuts; check to be sure axle nuts are secured by cotter
pins
• Air cleaner element - check for dirt; clean or replace
1.Locate the shift cable in the rear LH wheel well area.
2.Inspect shift cable, clevis pin, pivot bushings, and dust
boot. Replace if worn or damaged.
3.If adjustment is required, loosen the lower jam nut and pull
the cable out of the mount to move the upper jam nut.
• 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
• Check all front and rear suspension components for
wear or damage.
Frame, Nuts, Bolts, and Fasteners
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.
Shift Cable Inspection / Adjustment
Shift cable adjustment may be necessary if symptoms include:
• No AWD or gear position display on instrument cluster
• Ratcheting noise on deceleration
• Inability to engage into a gear
• Excessive gear clash (noise)
4.Adjust the shift cable so there is the same amount of cable
travel when shifting slightly past the detents of HIGH (H)
gear and PARK (P).
5.Thread the upper or lower jam nut as required to obtain
proper cable adjustment.
NOTE: This procedure may require a few attempts to
obtain the proper adjustment.
6.Once the proper adjustment is obtained, place the shift
cable and upper jam nut into the mount. Tighten the lower
jam nut against the mount.
7.Start engine and shift through all gears to ensure the shift
cable is properly adjusted. If transmission still ratchets after
cable adjustment, the transmission will require service.
• Gear selector moving out of desired range
2.10
MAINTENANCE
WARNING
Injector Rail
Connector
Fuel Pump
Connector
Fuel Line
Fuel Pump Asm
FUEL SYSTEM AND AIR INTAKE
Fuel System
Gasoline is extremely flammable and explosive
under certain conditions.
Always stop the engine and refuel outdoors or in
a well ventilated area.
Do not smoke or allow open flames or sparks in
or near the area where refueling is performed or
where gasoline is stored.
Do not overfill the tank. Do not fill the tank neck.
If you get gasoline in your eyes or if you swallow
gasoline, seek medical attention immediately.
If you spill gasoline on your skin or clothing,
immediately wash it off with soap and water
and change clothing.
Never start the engine or let it run in an enclosed
area. Engine exhaust fumes are poisonous and
can result in loss of consciousness or
death in a short time.
Never drain the fuel when the engine is hot.
Severe burns may result.
Fuel Pump / Fuel Filters
The RZR 800 EFI engine uses a serviceable, high-volume, highpressure, fuel pump that includes a preliminary filter and an
internal fine filter located before the pump regulator.
2
NOTE: Neither filter is servicable individually. Must
replace the fuel pump as an assembly.
Fuel Line
1.Check the quick-connect fuel line for signs of wear,
deterioration, damage or leakage. Replace if necessary.
2.Be sure fuel line is routed and retained properly.
IMPORTANT: Make sure line is not kinked or pinched.
3.Replace fuel line every two years.
NOTE: Refer to Chapter 4 for fuel pump replacement
and all other information related to the EFI System.
V ent Lines
1.Check fuel tank, front gearcase, rear gearcase and
transmission vent lines for signs of wear, deterioration,
damage or leakage. Replace every two years.
2.Be sure vent lines are routed properly and secured with
cable ties.
IMPORTANT: Ensure lines are not kinked or pinched.
2.11
MAINTENANCE
Throttle Pedal
Intake Duct
Boot
Jam Nut
Adjuster
Throttle Pedal Inspection
If the throttle pedal has excessive play due to cable stretch or
cable misadjustment, it will cause a delay in throttle speed. Also,
the throttle may not open fully. If the throttle pedal has no play ,
the throttle may be hard to control, and the idle speed may be
erratic.
Check the throttle pedal play periodically in accordance with the
Periodic Maintenance Chart and adjust the play if necessary.
3.Remove the (2) push rivets retaining the air intake box and
remove the box from the frame.
4.Loosen the hose clamp retaining the PVT intake du ct and
remove the duct from the vehicle to access the throttle cable
freeplay adjustment.
Throttle Freeplay Adjustment
Inspection
1.Place the transmission in the P (Park) position.
2.Start the engine, and warm it up thoroug hly.
3.Measure the distance the throttle pedal moves befo re the
engine begins to pick up speed. Freeplay should be 1/16” 1/8” (1.5 - 3 mm).
Adjustment
1.Remove both seats and rear service panel.
2.Remove the cargo box as an assembly (see Chapter 5).
5.Slide back the cable adjuster boot.
6.Using a 14 mm open-end wrench, loosen the adjustment
jam nut. Using a 12 mm open-end wrench, move the cable
adjuster until 1/16” to 1/8” (1.5 - 3 mm) of freeplay is
achieved at the throttle pedal.
2.12
MAINTENANCE
Air Box Cap
Cap
Seal
Air Filter
Apply Grease
NOTE: While adjusting, lightly move the throttle
pedal in and out.
7.Re-tighten the jam nut after final adjustment is made.
8.Apply a small amount of grease to the inside of the boot and
slide it over the cable adjuster to its original position.
9.Reinstall the PVT intak e duct and tighten the hose clamp.
10. Reinstall the air intake box and (2) push rivets.
11. Reinstall the cargo box, all fasteners and reconnect the
taillight harness.
12. Reinstall the rear service panel and seats.
Air Filter Service
It is recommended that the air filter be inspected as part of
pre-ride inspection. Always apply grease to the seal under the air
box cap and on the sealing edges of the air filter when servicing.
In extremely dusty conditions, air filter replacement will be
required more often.
The filter should be inspected using the following procedure:
Removal
1.The air box is located just above the left rear wheel in the
wheel well area.
2.Unlatch the (3) clips and remove the air box cap. Inspect
the seal. It should adhere tightly to the cover and seal all
the way around.
NOTE: If the filter has been soaked with fuel or oil it
must be replaced.
2
NOTE: Service more frequently if vehicle is operated
in wet conditions or at high throttle operation for
extended periods.
Installation
1.Clean the air box thoroughly.
2.Place the filter ring over the end of the filter.
NOTE: Apply a small amount of general purpose
grease to the sealing edges of the filter and the air
box cap seal before installing.
3.Remove the air filter assembly.
4.Inspect the air filter element and replace if necessary. Do
3.Install the filter into the air box and be sure it fits tightly.
4.Install air box cap and secure with clips.
not attempt to clean the air filter with anything other that
low pressure compressed air.
2.13
MAINTENANCE
Cap
Seal
Clip (3)
Boot
Air Box Can
Air Intake Duct
Breather
Seal
Fitting
Breather
Intake Box
Air Filter
Clamps
Front
Foam Seal
Filter
Hose
Foil
Filter Ring
Primary
Foam Seal
Intake Seal
Air Box / Air Filter Exploded View
2.14
MAINTENANCE
Dipstick
Lever Lock
Maintain Oil Level In SAFE Range
DO NOT Overfill the Engine
WARNING
Dipstick
Always read top side of dipstick to
properly check oil level in crankcase
ENGINE
Engine Oil Level
The twin cylinder engine is a wet-sump engine, meaning the oil
is contained in the bottom of the crankcase. To check the oil
level follow the procedure listed below:
1.Position vehicle on a level surface.
2.Place the transmission in Park (P).
3.Be sure the machine has sat for awhile before removing the
dipstick.
IMPORTANT: Do not run the machine and then check
the dipstick.
4.Remove both seats and the rear service panel to access the
dipstick.
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 surface of the dipstick as it
is being removed, regardless of the level marks
being on top or on bottom (see the next illustration).
2
NOTE: 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.
5.Stop engin e and lift the lever lock. Remove dipstick and
wipe dry with a clean cloth.
6.Reinstall the di pstick completely, but do not lock it.
NOTE: Make certain the dipstick is inserted all the
way into the filler tube to keep the angle and depth of
dipstick consistent.
7.Remove dipstick and check to see that the oil level is in the
SAFE range. Add oil as indicated by the level on the
dipstick. Do not overfill (see NOTE below!).
8.Reinstall the dipstick and lock the lever.
Engine Oil and Filter Service
Always change engine oil and filter at the intervals outlined in
the Periodic Maintenance Chart. Always change the oil filter
whenever changing the engine oil.
Personal injury can occur when handling used
oil. Hot oil can cause burns or skin damage.
Recommended Engine Oil:
PS-4 Plus Synthetic 4-Cycle Engine Oil
(PN 2876244) (Quart)
Ambient Temperature Range
-40° F to 120° F
1.Position vehicle on a level surface.
2.Place the transmission in PARK (P).
3.Start the engin e. Allow it to idle for two to three minutes
until warm. Stop the engine.
2.15
MAINTENANCE
CAUTION
Drain Plug
NOTE: Drain plug is accessed
through the skid plate.
Oil Filter
4.Clean area around oil drain plug at bottom of engine.
Oil may be hot. Do not allow hot oil to come into
contact with skin, as serious burns may result.
5.Place a drain pan beneath engine crankcase and remove the
drain plug.
6.Allow oil to drain completely.
7.Replace the sealing washer on drain plug.
NOTE: The sealing surface on the drain plug should
be clean and free of burrs, nicks or scratches.
8.Reinstall drain plug and torque to 16 ft. lb s. (22 Nm).
9.Place shop towels beneath oil filter. Using Oil Filter
Wrench (PU-50105) and a 3/8” extension, turn the oil filter
counter-clockwise to remove it.
11. Lubricate O-ring on new filter with a film of fresh engine
oil. Check to make sure the O-ring is in good condition.
12. Install new filter and turn by hand until filter gasket contacts
the sealing surface, then turn an additional 1/2 turn.
13. Remove the engine oil dipstick (see “Engine Oil Level”).
14. Fill the sump with 2 qts. (1.9 l) of PS-4 Plus Synthetic
Engine Oil (2876244).
Crankcase Drain Plug Torque:
16 ft. lbs. (22 Nm)
Oil Filter Torque:
Turn by hand until filter gasket contacts
sealing surface, then turn an
additional 1/2 turn
Oil Filter Wrench:
PU-50105: 2.5” (64 mm)
15. Verify the transmission is still positioned in PARK (P).
16. Start the engine and let it idle for one to two minutes.
17. Stop the engine and inspect for leaks.
18. Re-check the oil level on the dipstick and add oil as
necessary to bring the level to the upper mark on the
dipstick.
19. Dispose of used oil and oil filter properly.
10. Using a clean dry cloth, clean filter sealing surface on the
crankcase.
2.16
MAINTENANCE
Breather
Hose
WARNING
Silencer
Retaining
Arrestor
Screen
Washer
Screw
Engine Breather Hose Inspection
The engine is equipped with a breather hose. Inspect the
breather hose for possible kinks or wear. The hose is form fitted for a proper fit. Follow the breather hose from the side of
the airbox to the engine valve cover.
NOTE: Make sure line is not kinked or pinched.
Engine and Transmission Mounts
Periodically inspect engine and transmission mounts for cracks
or damage.
Exhaust - Spark Arrestor
Do not clean spark arrestor immediately after the
engine has been run, as the exhaust system
becomes very hot. Serious burns could result from
contact with the exhaust components. Allow
components to cool sufficiently before proceeding.
Wear eye protection and gloves.
Never run the engine in an enclosed area. Exhaust
contains poisonous carbon monoxide gas that can
cause loss of consciousness or death in a very
short time.
Periodically clean spark arrestor to remove accumulated carbon.
1.Remove the retaining screw, washer and spark arrestor
from the end of the silencer.
2.Use a non-synthetic brush t o clean the arrestor screen. A
synthetic brush may melt if components are warm.
3.Inspect the screen for wear and damage. Replace if needed.
4.Reinstall the arrestor and torque the screw to 40 in. lbs.(4.5 Nm).
2
Refer to Chapter 3 “Engine Assembly and Installation” for
mounting fastener torque values.
Compression and Leakdown Test
NOTE: This engine does NOT have decompression
components. Compression readings will vary in
proportion to cranking speed during the test.
A smooth idle generally indicates good compression. Low
engine compression is rarely a factor in running condition
problems above idle speed.
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:
165-185 PSI
Cylinder Leakdown
Service Limit: 15%
(Inspect for cause if test exceeds 15%)
2.17
MAINTENANCE
TRANSMISSION AND GEARCASES
Transmission / Gearcase S pecification Chart
G
EARCASELUBRICANTCAPACITYFILL PLUG TORQUE
Transmission
(Main Gearcase)
Transmission
(Transfer Case)
Front GearcaseDemand Drive Plus6.75 oz. (200 ml)8-10 ft. lbs. (11-14 Nm)8-10 ft. lbs. (11-14 Nm)
Rear Gearcase
Differential
Transmission Lubrication
Transmission Specifications
Specified Lubricant:
AGL Plus
Gearcase Lubricant
AGL Plus
Gearcase Lubricant
ATV Angle Drive Fluid22 oz. (650 ml)40-50 ft. lbs. (54-68 Nm)30-45 in. lbs. (3-5 Nm )
24 oz. (710 ml)40-50 ft. lbs. (54-68 Nm)30-45 in. lbs. (3-5 Nm)
14 oz. (414 ml)40-50 ft. lbs. (54-68 Nm)30-45 in. lbs. (3-5 Nm)
Transfer Case - Lubricant Level Check:
1.Position vehicle on a level surface.
2.Remov e the fil l plug.
3.Remove the level check plug.
DRAIN / LEVEL CHECK
P
LUG TORQUE
AGL Plus Gearcase Lubricant
(PN 2878068)
4.Add the recommended fluid through the fill plug hole until
it begins to flow out the level check plug hole.
Approximate Capacity at Change:
Main Gearcase - 24 oz. (710 ml)
Transfer Case - 14 oz. (414 ml)
Drain / Level Plug Torque:
30-45 in. lbs. (3-5 Nm)
Fill Plug Torque:
40-50 ft. lbs. (54-68 Nm)
The transmission lubricant levels should be checked and
changed in accordance with the maintenance schedule.
• Be sure vehicle is positioned on a level surface when
checking or changing fluid.
• Check vent hose to be sure it is routed properly and
unobstructed.
5.Reinstall the level check plug and torque to 3 0-45 in. lbs.(3-5 Nm).
6.Reinstall the fill plug and torque to 40-50 ft. lbs.(54-68 Nm).
2.18
MAINTENANCE
Main Gearcase - Lubricant Level Check:
The fill plug is located on the side of the gearcase just below the
shift lever bell crank. Maintain the fluid level even with the
bottom of the fill plug hole.
1.Position vehicle on a level surface.
2.Remove the fill / lev el plug and check the fluid level.
5.Add the recommended fluid through the fill plug hole until
it begins to flow out the level plug hole. Do not overfill.
6.Reinstall the level check plug and torque to 30-45 in. lbs.(3-5 Nm).
7.Reinstall the fill plug and torque to 40-50 ft. lbs.(54-68 Nm).
Main Gearcase Lubricant Change:
8.Remove the fill / level plug (refer to “Main Gearcase Lubricant Level Check”).
9.Place a drain pan under the main gearcase drain plug.
10. Remove the drain plug and allow to drain completely.
11. Clean and reinstall the drain plug with a new O-ring.
Torque to 30-45 in. lbs. (3-5 Nm).
12. Add the recommended fluid through the fill plug hole.
Maintain the fluid level at the bottom of the fill plu g hole
when filling the Main Gearcase. Do not overfill.
13. Reinstall the fill / level plug and torque to 40-50 ft. lbs.(54-68 Nm).
2
3.If fluid level is not at fill plug hole, add the recommended
fluid as needed.
4.Reinstall the fill / level plug and torque to 40-50 ft. lbs.(54-68 Nm).
Trans mission Lubricant Change:
The lubricant change procedure is relatively the same for the
main gearcase and the transfer case. To minimize confusion,
perform the lubricant change on only one gearcase at a time.
Access the drain plugs through the drain holes in the skid plate.
Transfer Case Lubricant Change:
1.Remove the fill plug and the level check plug (refer to
“Transfer Case - Lubricant Level Check”).
2.Place a drain pan under the transfer case drain plug.
14. Check for leaks. Discard the used lubricant properly.
3.Remove the drain plug and allow to drain com pletely.
4.Clean and Reinstall the drain plug with a new O-ring.
Torque to 30-45 in. lbs. (3-5 Nm).
2.19
MAINTENANCE
Front Gearcase Lubrication
The front gearcase lubricant level should be checked and
changed in accordance with the maintenance schedule.
• Be sure vehicle is positioned on a level surface when
checking or changing fluid.
• Check vent hose to be sure it is routed properly and
unobstructed.
Front Gearcase Specifications
Specified Lubricant:
Polaris Demand Drive Plus
(PN 2877922)
Capacity: 6.75 oz. (200 ml)
Fill Plug: 8-10 ft. lbs. (11-14 Nm)
Drain Plug: 8-10 ft. lbs. (11-14 Nm)
1.Position vehicle on a level surface.
2.Remove the fill plug and check the fluid level.
3.Add the recommended fluid as needed.
4.Reinstall the fill plug and torque to 8-10 ft. lbs. (11-14 Nm).
Lubricant Change:
The drain plug is located on the bottom of the gearcase.
Lubricant Level Check:
The fill plug is located on the bottom right side of the front
gearcase. Maintain the lubricant level even with the bottom
threads of the fill plug hole.
1.Remov e the fil l plug.
2.Place a drain pan under the drain plug.
3.Remove the drain plug and allow fluid to drain completely.
4.Clean the drain plug. Inspect the O-ring and replace if
damaged.
5.Reinstall the drain plug; torque to 8-10 ft. lbs. (11-14 Nm).
6.Add the recomm ended fluid. Maintain the lubricant level
even with the bottom threads of the fill plug hole.
7.Reinstall the fil l plu g; torque to 8-10 ft. lbs. (11-14 Nm).
8.Check for leaks. Discard the used lubricant properly.
2.20
MAINTENANCE
Rear Gearcase Lubrication
The rear gearcase lubricant level should be checked and
changed in accordance with the maintenance schedule.
• Be sure vehicle is positioned on a level surface when
checking or changing fluid.
• Check vent hose to be sure it is routed properly and
unobstructed.
Rear Gearcase Specifications
Specified Lubricant:
ATV Angle Drive Fluid (PN 2876160)
Capacity: 22 oz. (650 ml)
Fill Plug Torque: 40-50 ft. lbs. (54-68 Nm)
Drain Plug Torque: 30-45 in. lbs. (3-5 Nm)
Lubricant Level Check:
The fill plug is located on the right side of the rear gearcase.
Maintain the fluid level even with the bottom of the threads of
the fill plug hole.
Lubricant Change:
The drain plug is located on the bottom right sid e of the rear
gearcase.
1.Remove the fill plu g.
2.Place a drain pan under the drain plug.
3.Remove the drain plug and allow the lubricant to drain
completely.
4.Clean the drain plug.
5.Reinstall the drain plug with new O-ring and torque to
30-45 in. lbs. (3-5 Nm).
2
1.Position the vehicle on a level surface.
2.Remove the fill plug and check the fluid level. The lubricant
level should be even with the bottom of the threads of the
fill plug hole.
3.Add the recommended lubricant as needed.
6.Add the recommend ed lubricant. Maintain the fluid level
even with the bottom threads of the fill plug hole.
7.Reinstall the fill plug and torque to 40-50 ft. lbs.(54-68 Nm).
8.Check for leaks. Discard used lubricant properly.
4.Reinstall the fill plug and torque to 40-50 ft. lbs.
(54-68 Nm).
2.21
MAINTENANCE
Recovery Bottle
Pressure Cap
WARNING
Antifreeze Hydrometer
COOLING SYSTEM
Cooling System Overview
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.
NOTE: Some coolant level drop on new machines is
normal as the system is purging itself of trapped air.
Observe coolant levels often during the break-in
period.
NOTE: Overheating of engine could occur if air is
not fully purged from system.
Polaris Premium 60/40 is already premixed and ready to use. Do
not dilute with water.
Coolant Level Inspection
The pressure cap and recovery bottle are located under the front
hood of the vehicle. The coolant level must be maintained
between the minimum and maximum levels indicated on the
recovery bottle.
4.If the coolant level is below the MIN line, inspect the
coolant level in the radiator.
NOTE: If overheating is evident, allow system to
cool completely and check coolant level in the
radiator and inspect for signs of trapped air in
system.
Never remove the pressure cap when the
engine is warm or hot. Escaping steam can
cause severe burns. The engine must be cool
before removing the pressure cap.
5.Remove the pressure cap. Using a funnel, add coolant to the
top of the filler neck.
6.Reinstall the pressure cap.
NOTE: Use of a non-standard pressure cap will not
allow the recovery system to function properly.
7.Remove recovery bottle cap and add coolant using a funnel.
8.Fill recovery bottle to MAX level with Polaris 60/40
premix Anti Freeze/Coolant or 50/50 or 60/40 mixture of
antifreeze and distilled water as required for freeze
protection in your area.
9.Reinstall the recovery bottle cap.
10. If coolant was required, start engine and check for leaks.
Make sure radiator fins are clean to prevent overheating.
With the engine at operating temperature, the coolant level
should be between the upper and lower marks on the coolant
recovery bottle. If not, perform the following procedure:
1.Position the vehicle on a level surface.
2.Remove the hood from the front cab.
3.View the coolant level in the recovery bottle.
Coolant Strength / Type
Test the strength of the coolant using an antifreeze hydrometer .
• 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)
2.22
MAINTENANCE
CAUTION
A
Flush radiator fins
in this direction
CAUTION
WARNING
Drain Here
Cooling System Pressure Test
Refer to Chapter 3 for cooling system pressure test procedure.
Cooling System Hoses
1.Inspect all hoses for cracks, deterioration, abrasion or
leaks. Replace if necessary.
2.Carefully straighten any bent radiator fins.
3.Remove any obstructions with compressed air or low
pressure water.
2
Washing the vehicle with a high-pressure
washer could damage the radiator fins and
impair the radiators effectiveness. Use of a high-
pressure washer is not recommended.
Coolant Drain / Radiator Removal
Coolant Drain
1.Remove the hood from the fron t cab.
Never drain the coolant when the engine and
radiator are warm or hot. Hot coolant can cause
severe burns. Allow engine and radiator to cool.
2.Check tightness of all hose clamps.
Do not over-tighten hose clamps at radiator,
or radiator fitting may distort, causing a
restriction to coolant flow.
Radiator hose clamp torque is 36 in. lbs. (4 Nm).
Radiator
1.Check radiator (A) air passages for restrictions or damage.
2.Slowly remove the pressure cap to relieve any cooling
system pressure.
3.Place a suitable drain pan underneath the radiator fitting on
the front RH side of the vehicle.
4.Drain the coolant from the radiator by removing the lower
coolant hose from the radiator as shown. Properly dispose
of the coolant.
5.Allow coolant to com plet e ly drain.
2.23
MAINTENANCE
Recovery
Engine
T-Fitting
Radiator
Fan Motor Asm.
Screws
Grommets
Inserts
Hose
Outlet Hose
Engine
Inlet Hose
Steel Wheel
35 ft. lbs. (47 Nm)
#1
#2
Aluminum Wheel
30 ft. lbs. + 90° (1/4 turn)
Radiator Removal
1.Remove the front bumper (see Chapt e r 5).
2.Remove the up per engine outlet hose and recovery hose
from the top of the radiator.
3.Remove the (2) upp er radiator retaining bolts and the (4)
bolts retaining the lower radiator mount bracket. Rem ove
the bracket from the frame.
4.Disconnect the fan motor and remove the radiator from the
vehicle. Take care not to damage the cooling fins.
FINAL DRIVE / WHEEL AND TIRE
Wheel and Hub Torque Table
ItemNut TypeSpecification
Aluminum Wheels
(Cast)
Steel Wheels
(Black / Camo)
Hub Retaining Nuts-80 ft. lbs. (108 Nm)
NOTE: Do not lubricate the stud or the lug nut.
Lug Nut
#1
Flange Nut
#2
30 ft. lbs. + 90° (1/4 turn)
35 ft. lbs. (47 Nm)
5.Reverse procedure for installation.
Wheel Removal
1.Position the vehicle on a level surface.
2.Place the transmission in PARK (P) and stop the engine.
3.Loosen the wheel nu ts slightly. If wheel hub removal is
required, remove the cotter pin and loosen the hub nut
slightly.
4.Elevate the appropriate side of the vehicle by placing a
suitable stand under the frame.
5.Remove the wheel nuts and remove the wheel.
6.If hub removal is required, remove the hub nut and washers.
Wheel Installation
1.Verify the transmissi on is still in PARK (P).
2.Install the wheel hub, washers, and hub nut, if previously
removed.
3.Place the wheel in the correct position on the wheel hub.
Be sure the valve stem is toward the outside and rotatio n
arrows on the tire point toward forward rotation.
4.Attach the wheel nuts and finger tighten them.
2.24
5.Carefully lower the vehicle to the ground.
6.Torque the wheel nuts and /or hub nut to th e proper torqu e
CAUTION
WARNING
Wheel Nuts (4)
Hub Nut
Use a new
cotter pin
Val ve st em
facing outward
CAUTION
Tread
Depth 1/8" (3 mm)
Front Boots
Rear Boots
specification listed in the torque table at the beginning of
this section.
7.If hub nut w as removed, install a new cotter pin after th e
hub nut has been tightened.
MAINTENANCE
2
Tire Pressure
Maintain proper tire pressure.
Refer to the warning tire pressure decal
applied to the vehicle.
If wheels are improperly installed it could affect
vehicle handling and tire wear. On vehicles with
tapered rear wheel nuts, make sure tapered end
of nut goes into taper on wheel.
Tire Inspection
• Improper tire inflation may affect vehicle
maneuverability.
• When replacing a tire always use original equipment
size and type.
• The use of non-standard size or type tires may affect
vehicle handling.
Operating with worn tires will increase the
possibility of the vehicle skidding easily with
possible loss of control.
Worn tires can cause an accident.
Tire Pressure Inspection (Cold)
FrontRear
18 psi (124 kPa)18 psi (124 kPa)
Drive Shaft Boot Inspection
Inspect the drive shaft boots for damage, tears, wear or leaking
grease. If the boots exhibit any of these symptoms, they should
be replaced. Refer to Chapter 7 for drive shaft boot replacement.
Always replace tires when the tread depth
measures 1/8", (.3 cm) or less.
Tire Tread Depth
Replace tires when tread depth is worn to 1/8" (3 mm) or less.
2.25
MAINTENANCE
WARNING
WARNING
CAUTION
(-) Negative
(+) Positive
ELECTRICAL AND IGNITION SYSTEM
Battery Maintenance
Keep battery terminals and connections free of corrosion. If
cleaning is necessary, remove the corrosion with a stiff wire
brush. W ash with a solution of one tablespoon baking soda and
one cup water. Rinse well with tap water and dry off with clean
shop towels. Coat the terminals with dielectric grease or
petroleum jelly.
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 and birth defects or
other reproductive harm.
WASH HANDS AFTER HANDLING.
Battery Removal
1.Remove the driver’s seat to access the battery.
2.Disconnect the black (negative) battery cable.
3.Disconnect the red (positive) battery cable.
4.Remove the hold-down strap and lift the battery out of the
vehicle.
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 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: Batteries must be fully charged before use or
battery life will be reduced by 10-30% of full
potential. Charge battery according to “Charging
Procedure” provided in Chapter 10. Do not use the
vehicle’s stator/alternator to charge a new battery.
To reduce the chance of sparks: Whenever
removing the battery, disconnect the black
(negative) cable first. When reinstalling the
battery, install the black (negative) cable last.
Battery Installation
IMPORTANT: Using a new battery that has not been
fully charged can damage the battery and result in a
shorter life. It can also hinder vehicle performance.
Follow the battery charging procedure in Chapter 10
“Electrical” before installing the battery.
1.Ensure the batt ery is fully charged.
2.Place the battery in the battery holder and secure with holddown strap.
3.Coat the terminals with dielectric grease or petroleum jelly.
4.Connect and tighten the red (positive) cable first.
5.Connect and tighten the black (negative) cable last.
2.26
6.Verify that cables are properly routed and reinstall the
driver’s seat.
MAINTENANCE
WARNING
Note for
reassembly
Inspect electrode for
wear and buildup
Gap - .035" (0.90 mm)
Spark Plug Gap
Engine
Ground Strap
Ground Terminal
Battery Off Season Storage
Refer to Chapter 10 “Electrical” for off season storage
procedures.
Battery Charging (Maintenance Free)
Refer to Chapter 10 “Electrical” for charging procedure.
Spark Plug Service
1.Remove the seats, rear service panel and cargo box
assembly to access the spark plugs (see Chapter 5).
A hot exhaust system and engine can cause
serious burns. Allow engine to cool or wear
protective gloves when removing the spark plugs.
2.Remove both spark plug caps and clean plug area so no dirt
or debris can fall into engine when plugs are removed.
6.Measure gap with a wire gauge. Adjust gap if necessary by
carefully bending the side electrode.
2
7.If necessary, replace spark plug with proper type.
CAUTION: Severe engine damage may occur if the
incorrect spark plug is used.
8.Apply anti-seize compoun d to the spark plug thread s.
9.Install spark pl ugs and torque to specification.
Recommended Spark Plug:
Champion RC7YC3
Spark Plug Torque:
18 ft. lbs. (24 Nm)
3.Remove spark plugs.
4.Inspect electrodes for wear and carbon buildup. Look for a
sharp outer edge with no rounding or erosion of the
electrodes.
10. Install the plug caps to the appropriate cylinder by
referencing the MAG and PTO spark plug cap decals.
Engine To Frame Ground
Inspect ground cable connections. Be sure they are clean and
tight. The engine ground cable runs from the starter motor to the
chassis ground terminal.
5.Clean with electrical contact cleaner or a glass bead spark
plug cleaner only. CAUTION: A wire brush or coated
abrasive should not be used.
2.27
MAINTENANCE
WARNING
Tie Rod
U-Joints
Gearbox
Tie Rod
Check for Loose Wheel or Hub
STEERING
Steering Inspection
The steering components should be checked periodically for
loose fasteners, worn tie rod ends, ball joints, 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 the 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: Whenever steering components are
replaced, check front end alignment.
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.
Use only genuine Polaris replacement parts.
Steering Wheel Freeplay
Check the steering wheel for specified freeplay and operation.
1.Position the vehi cle on level ground.
2.Lightly turn th e steering wheel left and right.
3.There should be 0.8”-1.0 ” (20-25 mm) of freeplay.
4.If there is excessive freeplay or the steering feels rough,
inspect the following components.
• Tie Rod Ends
• Steering Shaft U-Joints
• Steering Gearbox
Tie Rod End / Wheel Hub Inspection
• To check for play in the tie rod end, grasp the steering
tie rod, pull in all directions feeling for movement.
• 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.
2.28
• If abnormal movement is detected, inspect the hub and
wheel assembly to determine the cause (loose wheel
nuts or loose front hub nut).
• Refer to Chapter 7 “Final Drive” for front hub service
procedures.
MAINTENANCE
= In. / mm.
CAUTION
Wheel Toe Alignment Inspection
1.Place machine on a smooth level surface and set steering
wheel in a straight ahead position. Secure the steering
wheel in this position.
2.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.
Wheel Toe Adjustment
If toe alignment is incorrect, measure the distance between
vehicle center and each wheel. This will tell you which tie rod
needs adjusting.
2
NOTE: It is important the height of both marks be
equally positioned to get an accurate measurement.
3.Measure the distance between the marks and record the
measurement. Call this measurement “A”.
4.Rotate the tires 180
Position chalk marks facing rearward, even with the hub/
axle center line.
5.Again measure the distance between the marks and record.
Call this measurement “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).
(A) - (B) = 1/8 - 1/4" (.3 to .6 cm)
by moving the vehicle forward.
Wheel Toe-Out:
NOTE: Be sure steering wheel is straight ahead
before determining which tie rod needs adjustment.
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 in
“Wheel Toe Alignment”.
2.29
MAINTENANCE
= T
WARNING
Increase
Preload
Decrease
Preload
1
Factory Preload Setting
4.2 in. (10.7 cm)
2.0 Piggyback
Front Shock
• 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.
• After alignment is complete, torque jam nuts to
specification.
Tie Rod Jam Nut Torque:
12-14 ft. lbs. (16-19 Nm)
SUSPENSION (FOX™)
Spring Preload Adjustment
The front and rear shocks have a preload adjustment.
Suspension spring preload may be adjusted to suit different
riding conditions or vehicle payloads.
Uneven adjustment may cause poor handling of the
vehicle, which could result in an accident and
serious injury or death. Always adjust both the left
and right spring preloads equally.
1.Raise and safely support the front or rear of the vehicle off
the ground to allow the suspension to fully ext e nd .
2.Loosen the upper j am nu t adjust men t ring. Tu rn the low er
adjustment ring (1) clockwise to increase preload or
counter-clockwise to decrease preload.
2.30
MAINTENANCE
2.0 Piggyback
Increase
Preload
Decrease
Preload
1
Factory Preload Setting
4.8 in. (12.2 cm)
Rear Shock
Clicker
Adjuster
Increase
Damping
Decrease
Damping
Shock Compression Adjustment
The compression damping adjustment is located on top of the
shock ‘Piggyback’ reservoir of each shock.
Use a flat blade screwdriver to make damping adjustments.
3.Once you have obtained the correct preload, hold the lower
adjustment ring while tightening the upper adjustment ring
to lock them in place.
Shock Spanner Wrench
NOTE: When the adjuster screw is turned clockwise
until it stops, the damping is in the fully closed
position.
Turn the clicker clockwise to increase compression damping.
Turn the clicker counter-clockwise to decrease compression
damping.
NOTE: The factory setting is 10 clicks from closed.
Refer to the “Compression Adjustment Table”
below.
2
(PN 2870803)
Compression Adjustment Table
SettingCompression Damping
Softest18 clicks from closed
Factory10 clicks from closed
Firmest2 clicks from closed
2.31
MAINTENANCE
Master Cylinder
Maximum
Minimum
Measure Pad Material
Service Limit:
.040" (1 mm)
Thickness
Measure Brake Disc Thickness
Service Limit:
.170" (4.32 mm)
Front
Disc
Rear
Disc
BRAKE SYSTEM
Brake Fluid Inspection
Always check the brake pedal travel and inspect the brake fluid
reservoir level before each operation. If the fluid level is low,
add DOT 4 brake fluid only.
Brake fluid should be changed every two years. The fluid should
also be changed anytime the fluid becomes contaminated, the
fluid level is below the minimum level, or if the type and brand
of the fluid in the reservoir is unknown.
The brake fluid master cylinder reservoir can be accessed
through the left front wheel well.
1.Position the vehicle on a level surface.
2.Place the transmission in PARK (P).
3.View the brake fluid level in the reservoir. The level should
be between the MAX and MIN level lines.
4.If the fluid level is lower than the MIN level line, add brake
fluid until it reaches the MAX level line.
5.Install the reservoir cap and apply the brake pedal
forcefully for a few seconds and check for fluid leakage
around the master cylinder fittings and the brake caliper
fittings.
Brake Pad / Disc Inspection
1.Check the brake pads for wear, damage, or looseness.
2.Inspect the brake pad wear surface for excessive wear.
3.Pads should be changed when the friction material is worn
to .040” (1 mm).
4.Check surface condition of the brake discs.
5.Measure the thickness of the front and rear brake discs.
6.The disc(s) should be replaced if thickness is less than .170”
(4.32 mm).
2.32
Brake Hose and Fitting Inspection
Check brake system hoses and fittings for cracks, deterioration,
abrasion, and leaks. Tighten any loose fittings and replace any
worn or damaged parts.
MAINTENANCE
MAINTENANCE LOG
Service DateHours / Miles (km)Service Performed / CommentsDealer / Technician
Second Ring - Standard0.0098 - 0.0197" (0.25 - 0.50 mm)
Second Ring - Limit> 15% Leakdown
Oil Ring - Standard0.0197 0.0098" (0.50 0.25 mm)
Oil Ring - Limit> 15% Leakdown
T op Ring - Standard0.0024" 0.0008" (0.060 0.020 mm )
Top Ring - Limit> 15% Leakdown
Second Ring - Standard0.0028" 0.0008" (0.070 0.020 mm)
Second Ring - Limit> 15% Leakdown
Connecting Rod Small End I.D.0.7096" 0.70846" (18 17.995 mm)
Connecting Rod Small End
Radial Clearance
Connecting Rod Big End
Side Clearance
Connecting Rod Big End
Radial Clearance
0.00098" 0.00039" (0.025 0.010 mm)
0.01181" 0.00591" (0.30 0.15 mm)
0.0015" 0.0006" (0.038 0.015 mm)
3.10
Special Tools
ENGINE
Part NumberTool Description
PU-50105OIL FILTER WRENCH
PU-45257VALVE SPRING COMPRESSOR
PU-45652VALVE PRESSURE HOSE
2871043FLYWHEEL PULLER
2870390PISTON SUPPORT BLOCK
PU-45497-1CAM GEAR SPRING INSTALLATION KIT
PU-45497-2CAM GEAR TOOTH ALIGNMENT TOOL
PU-45498CAM SPANNER WRENCH
PU-45838GEAR HOLDER
PA-44995WATER PUMP MECHANICAL SEAL INSTALLER
PU-45543UNIVERSAL DRIVER HANDLE
PA-45483MAIN SEAL INSTALLER
3
PU-45658CRANKSHAFT MAIN SEAL SAVER
PA-45401WATER PUMP SEAL SAVER
2870975MITY VAC™
PU-45778OIL SYSTEM PRIMING TOOL
PRESSURE TEST TOOL
3.11
ENGINE
WARNING
Remove
Cap
Te st H e r e
Pressure Cap
ENGINE COOLING SYSTEM
Cooling System Specifications
ConditionCoolant Temperature F (C)
Room Temperature68 F (20 C)
Thermostat Closed175° F (79° C)
Thermostat Open180° F (82° C)
Fan Off194 F (90 C)
Thermostat Full Open Lift202° F (94° C)
Fan On205 F (96 C)
Engine Temperature
Overheat Indicator
Engine Protection
Ignition Misfire
Engine Protection
Shutdown
Moving Vehicle: 235
Idle Vehicle:241 F (116 C)
Moving Vehicle: 239
Idle Vehicle:244 F (118 C)
Moving Vehicle: 257
Idle Vehicle:262 F (128 C)
F (113 C)
F (115 C)
F (125 C)
2.Remove pressure cap and pressu re test the cooling system
using a commercially available pressure tester.
3.The system must maintain 10 psi for five minutes or longer.
If pressure loss is evident within five minutes, check the
radiator, hoses, clamps and water pump seals for leakage.
Pressure Cap Test
ItemSpecification
Cooling System Capacity4.8 qts. (4.5 l)
Pressure Cap Relief13 PSI
Polaris Premium Antifreeze
2871534 - Quart
2871323 - Gallon
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.
Cooling System Pressure Test
1.Remove the hood from the front cab.
Never remove pressure 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.
1.Remove pressure cap and test cap using a commercially
available pressure cap tester.
2.The pressure cap relief pressure is 13 psi. Replace cap if it
does not meet this specification.
3.12
Cooling System Exploded View
Recovery Bottle
Engine Inlet Hose
Engine Outlet Hose
Radiator
Radiator
Shroud
Radiator
Pressure Cap
Fan Motor
(Water Pump Cover)
(Thermostat Housing)
Outlet Hose
Inlet Hose
Filler Neck
To Top Fitting on Filler Neck
To Lower Fitting on Filler Neck
Bypass Hose (To Cylinder Head)
Coolant Flow Diagram
Radiator
Recovery Bottle
Engine
Water Pump
Engine
Thermostat Housing
Filler Neck
Engine Cylinder Head
Bypass
ENGINE
3
3.13
ENGINE
WARNING
CAUTION
CAUTION
Pressure Cap
Recovery Bottle
Pressure Cap
Top LH Side
of Cylinder Head
C
Spark Plug
Cooling System Bleeding Procedure
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.
Use caution when performing these procedures.
Coolant may be hot and may cause
severe injury or burns.
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.
NOTE: Use this procedure when a unit overheats
and no apparent leaks in the cooling system are
found.
1.Drive the vehicle onto a slight incline and use properly
weight rated ramps. If an incline is not available, slightly
elevate the front of the vehicle.
2.Place the vehicle in Park and block the rear wheels.
3.Remove pressure cap and to p off coolan t.
4.Remove recovery bottle cap and fi ll bot tle to the full line.
5.Leave the cap off of the radiator to allow any possible air
to escape.
6.Start the engine and let it idle for 5-10 minutes or until the
thermostat opens and allows coolant to flow through the
system.
7.Slightly loosen the bleed screw (C) on the cylinder head to
let air escape. If no air is present, a steady stream of coolant
will stream out. If air is present, the screw will bubble and
sputter as the air escapes.
3.14
Be sure the engine has cooled and no pressure
is built up in the cooling system before removing
the pressure cap. The coolant may be hot and
could cause severe injury or burns.
8.Tighten the bl eed screw to 70 ± 10 in. lbs. (8 ± 1.13 Nm )
on the thermostat housing and properly install the pressure
cap.
9.Squeeze the coolant lines by hand to help purge the system
of air.
NOTE: If there is air in the system you will see air
bubbles forming through the radiator filler neck.
ENGINE
WARNING
=
10. Add Polaris Premium Antifreeze to the radiator filler neck
if the level goes down. If no bubbles are seen at the filler
neck, the system should be purged of air
Be sure to install the pressure cap before
shutting off the engine.
Coolant may spit out of the radiator.
11. Stop the engine and let cool, top off the radiator filler neck
with coolant. If you hear or see a “glug” at the filler neck,
or there is a dropping of the coolant level, indicating that
coolant has been pulled into the system; Fill the recovery
bottle only after you have completely filled the cooling
system at the radiator filler neck.
12. Repeat this procedure, if overheating still occurs.
GENERAL ENGINE SERVICE
Engine Lubrication Specifications
Capacity: Approximately 2 U.S. Quarts (1.9 L)
Oil Type: Polaris PS-4 PLUS Synthetic
Filter Wrench: PU-50105 - 2.5” (64 mm)
- Oil Pressure Specification -
27-35 psi @ 6000 RPM, Polaris PS-4 PLUS
Synthetic, Engine at operating temperature.
Accessible Engine Components
The following components can be serviced or removed with the
engine installed:
• Starter Motor / Drive
• Cylinder Head
• Cylinder
• Piston / Rings
• Rocker Arms
• Water Pump
3
The following components require engine removal for service:
• Flywheel
• Alternator (Stator)
• Counterbalance Shaft or Bearings
• Gear Train Components
• Camshaft
• Oil Pump / Oil Pump Drive Gear
• Connecting Rod
• Crankshaft
• Crankshaft Main Bearings
• Crankcase
Oil Pressure Test
1.Remove blind plug /sender from left side of crankcase.
2.Insert a 1/8 NPT oil pressure gauge adaptor into the
crankcase and attach the gauge.
3.Start engine and allow it to reach operating temperature,
monitoring gauge indicator.
Oil Pressure at Idle: 6 psi
Oil Pressure at 6000 RPM (Engine Hot):
Minimum: 27 psi
Standard: 31 psi
Maximum: 35 psi
3.15
ENGINE
Oil Flow Chart
This chart describes the flow of oil through the 800 EFI engine. Beginning in the crankcase sum p, the oil is drawn t hrough an oil
galley to the feed side of the oil pump. The oil is then p umped 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 b ores, 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.
3.16
ENGINE
WARNING
Remove
Push Rivets
Engine Removal
Because of its design configuration and fastener torque
requirements, Polaris recommends removing the engine,
transmission and rear gearcase as one assembly. Use the
following procedure when engine removal is required.
IMPORTANT: Some engine repair procedures can be
performed without removing the engine assembly
from the vehicle. Refer to “Accessible Engine
Components” on Page 3.15 for further information.
NOTE: The use of an overhead or portable engine
hoist is the only recommended method for removing
and installing the engine / transmission / rear
gearcase assembly.
NOTE: Have an assistant help guide the engine in
and out of the vehicle while using an engine hoist to
prevent personal injury or damage to vehicle
components.
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.
8.Remove the (2) screws from the rear of the center console.
3
9.Remove the rear seat base assembly from the vehicle by
removing the (2) fasteners from the rear seat base.
10. Remove the rear bumper, rear cargo box and box supports
from the vehicle (see Chapter 5).
11. Remove the (2) push rivets and remove the intake box from
the vehicle.
1.If vehicle was recently operated, allow it to cool down
before attempting to perform any work.
2.Clean work area.
3.Thoroughly clean the eng ine and chassis.
4.Drain appropriate lubricant(s):
• If servicing the engine, drain engine oil.
• If servicing the transmission, drain the lubricant from
the main gearcase and transfer case.
• If servicing the rear gearcase, drain the gearcase
lubricant.
5.Remove the driver’s seat (see Chapter 5).
6.Disconnect (-) negative battery cable.
7.Remove the passenger seat(s) and remove the rear service
panel (see Chapter 5).
12. Elevate the rear of the vehicle off the ground using a
suitable ATV lift and remove both rear wheels.
13. Remove all exhaust components from vehicle and engine.
3.17
ENGINE
Outlet Duct
PVT Cover
Harness
Connection
Ignition
Coil
Frame Support
PVT Duct
14. Loosen the hose clamp attaching the outlet duct to the PVT
cover. Leave the duct attached to the upper frame support.
15. Remove the (8) screws that retain the PVT cover and
remove cover.
16. Remove the high tension leads from the spark plugs and
disconnect the ignition coil harness.
18. Remove the (6) fasteners retaining the upper bolt-in frame
brace and remove it from the vehicle with the ignition coil
and PVT duct attached.
19. Remove the rear stabilizer bar from the linkage on both
sides of the vehicle.
NOTE: Be sure to mark / note which ignition coil
wire goes to which cylinder and ignition coil post.
The engine will misfire if the spark plug wires are
installed incorrectly. The spark plug wires are
marked PTO and MAG and should be installed to the
corresponding cylinder spark plug and coil post.
17. Remove the vent lines from the upper bolt-in frame brace
and plug vent lines to prevent fluid leakage during removal.
3.18
20. Remove the (4) fasteners retaining the stabilizer bar and
bracket and remove the assembly from the vehicle.
21. Remove the engine breather hose from the valve cover.
ENGINE
Loosen
Clamp
Disconnect Here
DO NOT
Disconnect Here
Fuel
Injector
Harness
22. Loosen the hose clamp between the throttle body and intake
adaptor.
23. Disconnect the T-MAP, IAC and TPS sensor connectors
from throttle body.
25. Remove the airbox and throttle body from the vehicle as an
assembly. Take care in not allowing the throttle cable to
bend excessively or kink. Carefully place the assembly on
the floor next to the vehicle. Insert a shop towel into the
engine intake adaptor to prevent dirt from entering the
engine.
NOTE: Ensure throttle cable is not being
excessively bent or kinked while removed from the
vehicle.
26. Mark the fuel injector harnesses to identify MAG and PTO
harness connections to aid during reassembly. Disconnect
the fuel injector harnesses.
NOTE: The fuel injector harness connector and
locking spring is bonded to the fuel injectors with an
epoxy mix. DO NOT attempt to disconnect the
connector from the fuel injectors. Damage will occur
to the injector and/or harness if attempting to
separate at that location. Separate the fuel injector
from the vehicle by disconnecting at the end of the
harness as shown.
3
24. Remove the remaining bolt attaching the airbox to the
frame (see photo).
IMPORTANT: Be sure to mark / note the color of the
fuel injector connectors. For proper engine function,
the fuel injectors must be connected correctly. Make
note of PTO and MAG side injectors before
disconnecting them. PTO = GRAY , MAG = BLACK
3.19
ENGINE
Squeeze locking tabs together
Push lock outward
Remove
Clip
Lower
Jam Nut
Mark Upper
Jam Nut
Gear Switch
Connector
CPS
Connector
Stator
Connector
27. Disconnect the fuel line from the fuel injector rail by
slightly squeezing the lock tabs and gently pushing the
connector lock out. To separate the lines, pull the fuel line
from the tank strait down.
28. Disconnect the shift cable from the transmission bell crank.
NOTE: If the upper jam nut is moved, shift cable
adjustment will be required during engine
installation (see Chapter 2 “Shift Cable Inspection /
Adjustment”).
30. Disconnect the transmission gear indicator switch harness.
31. Disconnect the CPS harness.
29. Mark the upper jam nut and loosen the lower jam nut. Pull
the shift cable out of the mount.
3.20
32. Disconnect the stator / alternator harness.
ENGINE
Speed Sensor
Connector
Cam Phase
Connector
Castle Nut
Hub Carrier
33. Disconnect the transmission speed sensor harness.
34. Disconnect the cam phase sensor connector.
36. Remove the through-bolt that attaches the upper A-arm to
the rear hub on both sides of the vehicle.
3
37. Pivot the A-arms upward and rear hub carriers downward
and remove the drive shafts from the hub carriers.
35. Remove the castle nuts from both rear wheel hubs.
38. Grasp the rear drive shafts and pull sharply outward on the
shafts to disengage them from the rear gearcase.
NOTE: Clean area around drive shaft orifices on
both sides of rear gearcase and cover orifices using
duct tape. This will prevent the lubricant from
leaking out during removal.
3.21
ENGINE
ECT
Connector
Coolant
Bypass
Remove
(2) Lower Bolts
39. Disconnect the engine coolant temperature (ECT) sensor
harness and the bypass coolant hose.
40. Loosen the hose clamp and remove the lower coolant hose
from the water pump cover inlet and drain coolant into a
suitable container.
45. Remove RH engine mount fastener.
46. Remove the (2) lower bolts that retain the LH transmission
mount to the frame.
41. Remove the filler neck pressure cap to relieve the cooling
system vacuum.
NOTE: Use a portable wet-vac or syphon to prevent
any coolant from spilling.
42. Remove the upper coolant hose from the thermostat
housing outlet to relieve any coolant vacuum created in the
engine. Allow engine coolant to completely drain. Properly
dispose of the engine coolant / antifreeze.
43. Remove the (+) positive battery cable from the starter
motor terminal and (-) negative battery cable from the
starter motor engine mount.
44. Remove the outer PVT cover.
3.22
47. Remove the (2) rear gearcase mount bracket fasteners and
mount bolt and remove bracket from vehicle.
NOTE: The use of an overhead or portable engine
hoist is the only recommended method for removing
and installing the engine / transmission / rear
gearcase assembly.
ENGINE
Transmission/Gearcase
Mount Plate
Engine/Transmission
Mount Plate
Allow valve cover
to clear frame
48. Using an engine hoist, hook a chain between the engine /
transmission mounting plate and the transmission / rear
gearcase mounting plate.
50. Remove propshaft from the transmission output shaft.
51. Then move assembly towards the front of the vehicle while
lifting it out to allow the rear gearcase to clear the rear
portion of the frame.
52. Then lift assembly high enough to clear vehicle frame and
completely remove it from the vehicle to a work bench.
3
NOTE: Have an assistant help guide the engine in
and out of the vehicle while using an engine hoist to
prevent personal injury or damage to vehicle
components.
49. Lift the front portion of the assembly out first to allow the
engine valve cover to clear the vehicle frame.
3.23
ENGINE
Engine / Transmission Separation
Once the engine / transmission / rear gearcase assembly has
been removed from the vehicle, the engine and transmission will
need to be separated to allow engine servicing. Use the
following procedure to separate the engine from the assembly.
1.Remove the d rive belt, drive clutch and driven clutch (see
Chapter 6).
2.Remove the (6) fasteners retaining the inner clutch cover
to the engine and transmission.
4.Tilt the assembly up and remove the remaining (2) nuts that
retain the transmission to the engine.
5.Carefully separate the engine and perform the required
service (see “Engine Disassembly and Inspection”).
3.Remove only the (4) outer fasteners retaining the engine to
the transmission bracket.
3.24
ENGINE DISASSEMBLY AND INSPECTION
Push Rods
Hydraulic Lifters
Valves
Cylinder Head
Coolant Bleeder
Springs
Spring Retainers
Rocker Arms
Retainer Locks (keepers)
Valve Spring Seats (2)
Valve Seals (2)
Head Bolts
Cylinder Head Assembly Exploded View
ENGINE
3
3.25
ENGINE
WARNING
A
A
C
D
B
Rocker Arms
1.Remove the valve cover.
2.Mark or tag rocker arm s in order of disassembly to keep
them in order for reassembly.
3.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.
NOTE: Do not attempt to true this surface by
grinding.
4.Check the rocker arm pad and fulcrum seat for excessive
wear, cracks, nicks or burrs.
5.If the push rod (A) is visibly bent, it should be replaced.
Cylinder Head Removal
NOTE: The cargo box assembly and the upper frame
bolt-in brace must be removed to allow enough
clearance to remove all the cylinder head bolts.
Refer to Chapter 5 for removal procedures.
1.Loosen the six cylinder head bolts evenly 1/8 turn each in
a criss-cross pattern until loose.
2.Remov e bolts (A) and tap cyli nder head (B) ligh tly 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.
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.
Always wear safety glasses when working with
compressed air to prevent personal injury.
3.Check the ends o f 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.
3.Remove cylinder head (B) and head gasket (C) from the
cylinder (D).
3.26
ENGINE
CAUTION
= In. / mm.
A
B
Measure at different
points on the surface.
WARNING
A
B
PU-45257
Cylinder Head Inspection
Thoroughly clean cylinder head surface to remove all traces of
gasket material and carbon.
Use care not to damage sealing surface.
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.
Valve Seal / Spring Service (On Engine)
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.
3
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 Warp Limit:
.004" (.1016 mm) max
NOTE: To prevent damage to the valve seals, do not
compress the valve spring more than is needed to
remove the valve keepers.
3.Remove spring retainer and spring.
4.The valve seals are now serviceable.
3.27
ENGINE
= In. / mm.
D
C
E
V alve Spring
Free Length
Mark the Valves
Cylinder Head Disassembly
1.Carefully remove the cylind er components.
2.Place the hydraulic lifters (C), pushrods (D), and rocker
arms (E) in a safe, clean area.
4.Remove valve guide seals.
IMPORTANT: 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.
5.Mark the valves with a white pen. Remove the valves from
the cylinder head. This will ensure that the valves are
properly placed during engine reassembly.
3.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)
3.28
Valve Inspection
A
B
Measure valve stem in several places.
Rotate the valve 90 degrees and measure
for wear.
= In. / mm.
= In. / mm.
C
1.Remove all carbon from valves with a soft wire wheel or
brush.
ENGINE
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). Inspect split keeper groove for wear or flaring of the
keeper seat area (B).
Valve Stem Diameter:
Intake: 0.2356" 0.00039"
(5.985 0.01 mm)
Exhaust: 0.2351" 0.00039"
(5.972 0.01 mm)
5.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.
3
NOTE: The valves can be re-faced or end ground, if
necessary. They must be replaced if extensively
worn, burnt, bent, or damaged.
4.Measure diameter of valve stem with a micrometer in three
places, then rotate 90 degrees and measure again (six
measurements total). Compare to specifications.
Valve Guide I.D.:
0.23672" 0.000295"
(6.0617 0.0075 mm)
6.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.
3.29
ENGINE
WARNING
Combustion Area
Combustion Chamber
1.Clean all accumulated carbon deposits from combustion
chamber and valve seat area with carbon cleaner and a soft
plastic scraper.
IMPORTANT: 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.
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.
Valve Seat Reconditioning
NOTE: Polaris recommends that the work be done
by a local machine shop that specializes in this area.
NOTE: The cylinder head valve guides cannot be
replaced.
Wear eye protection or a face shield during
cylinder head disassembly and reassembly.
Valv e 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 commercially available cylinder head
reconditioning kit. Abrasive stone seat reconditioning
equipment can also be used. Keep all valves in order with their
respective seat.
1.Install pilot int o valve gu ide.
2.Apply cu tting oil to valve seat and cutter.
3.Place 46
cutter on the pilot and make a light cut.
3.30
ENGINE
A
= In. / mm.
B
A
Proper Seat Contact
on Valve Face
Bottom 60
Seat 45
Top 30
Seat
Width
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
* 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
marker to the entire valve face (A).
and make another light cut.
) apply black permanent
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 (A).
3
6.Insert valve into guide and tap valve lightly into place a few
times.
7.Remove valve and check where the Prussian Blue
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
* If too low, use the 60
area is centered on the valve face, measure seat width.
* If the seat is too wide or uneven, use both top an d bottom
cutters to narrow the seat.
* If the seat is too narrow, widen using the 45
check contact point on the valve face and seat width after each
cut.
cutter to lower the valve seat.
cutter to raise the seat. When contact
cutter and re-
Valve Seat Width:
Intake Std: .028" (.7 mm)
Limit: .055" (1.4 mm)
Exhaust Std: .039” (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.
3.31
ENGINE
PU-45257
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).
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
PS-4 PLUS Synthetic engine 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.
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 be used to aid in the
installation of the keepers.
12. Thoroughly clean cylinder head and valves.
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.
NOTE: To prevent damage to the valve seals, do not
compress the valve spring more than necessary to
install the keepers.
3.32
ENGINE
A
A
Mark Hydraulic Lifter
Inspect Hydraulic Lifter
Valve Sealing Test
1.Clean and dry the combustion chamber area (A).
2.Pour a small amount of clean solven t 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.
Valve Lifter Removal / Inspection
1.Remove the valve lifters by reaching into the crankcase
and pushing the lifter up through the lifter bore by hand.
2.Thorough ly 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.
3
Cylinder Removal
1.Follow engi ne 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
the crankcase, supporting pistons and connecting rods.
Support pistons with Piston Support Block (PN 2870390).
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.
NOTE: 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.
3.33
ENGINE
Compression
Rings
Oil Ring
B
Piston Removal
1.Remove the circlip. Mark the piston with a white pen to
ensure proper orientation (if reused) during assembly.
NOTE: If the pistons are to be reused, reassemble
the pistons in the same cylinder and direction from
which they were removed.
NOTE: New pistons are non-directional and can be
placed in either cylinder.
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.
B) Remove the expander.
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 of f
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.
3.34
ENGINE
= In. / mm.
Measure at different
points on surface.
A
B
A
B
C
= In. / mm.
1/2” Down From Top of Cylinder
1/2” Up From Bottom
Cylinder Inspection
1.Remove gasket material from cylinder sealing surfaces.
2.Inspect the top of the cylinder (B) for warp using a straight
edge (A) and feeler gauge (C). Refer to Ill. 1 and Ill. 2.
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.
3
Cylinder Warp: .004" (0.1 mm) Max.
3.Inspect cylinder for wear, scratches, or damage.
Cylinder Taper Limit:
.002" (.050 mm) Max.
Cylinder Out of Round:
Limit: .002" (.050 mm) Max.
Standard Bore Size
(Both Cylinders): 3.1496" (80 mm)
3.35
ENGINE
CAUTION
Example of Cross Hatch Pattern
Cylinder Hone Selection and Honing
Procedure
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.
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.
Honing To Deglaze
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.
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.
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.
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 (transfer
port area). Use electrical contact cleaner if necessary to clean
these areas. Rinse thoroughly , dry with compressed air, and oil
the bore immediately with Polaris Lubricant.
• Release the hone at regular intervals and inspect the
bore to determine if it has been sufficiently de-glazed,
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.
3.36
ENGINE
5 mm
Piston
Piston Pin
Piston Pin Measurement Locations
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 bore
measurement obtained during the “Cylinder Inspection”
procedure.
Piston to Cylinder Clearance:
See “800 EFI Engine Service
Specifications” on page 3.9
2.Measure piston pin O.D. Replace piston and/or piston pin
if out of specification.
3
Piston Pin O.D.:
See “800 EFI Engine Service
Specifications” on page 3.9
3.Measure connecting rod small end ID.
Piston O.D.:
See “800 EFI Engine Service
Specifications” on page 3.9
Piston / Rod Inspection
1.Measure piston pi n bore.
Piston Pin Bore:
See “800 EFI Engine Service
Specifications” on page 3.9
Connecting Rod Small End I.D.:
See “800 EFI Engine Service
Specifications” on page 3.9
3.37
ENGINE
Piston
Ring
Feeler Gauge
A
B
C
25-50 mm
A
B
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-to-groove clearance
exceeds service limits.
See “800 EFI Engine Service
Specifications” on page 3.9
Piston Ring Installed Gap
1.Place each piston ring (A) inside cylinder (B) using a
piston to push ring squarely into place as shown.
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.
NOTE: 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 ho using 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 (A). Note the thrust
washers located on both sides of the bendix.
Piston Ring Installed Gap:
See “800 EFI Engine Service
Specifications” on page 3.9
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.
IMPORTANT: A difference in end gap indicates
cylinder taper. The cylinder should be measured for
excessive taper and out of round.
3.38
4.Inspect the thrust washer for wear or damage and replace
if necessary.
5.After the bendix is removed, remove the two bolts retaining
the starter. Tap on the starter assembly (B) with a soft faced
mallet to loosen the starter from the crankcase.
6.Inspect gear teeth on starter drive (A). Replace starter drive
CAUTION
C
Remove Stator
Cover
A
2871043
E
B
D
A
B
if gear teeth are cracked, worn, or broken.
7.Inspect t he bendix bushing (C) in the mag co ver for wear.
Replace as needed.
Flywheel / Stator Removal / Inspection
1.Remove stator housing bolts and remove housing.
ENGINE
3
4.Use caution when removing the wire holddown (B) and the
stator assembly (D). Do not tap or bump the gear /statorhousing cover or the stator. This could cause the seal
around the gear/stator housing cover and the crankcase to
break, causing a leak.
2.Remove flywheel nut and washer.
3.Install Flywheel Puller (PN 2871043) and remove flywheel
(A).
Do not thread the puller bolts into the flywheel
more than 1/4, or stator coils may be damaged.
5.Remove the bendix (E) if necessary.
Engine Crankcase Disassembly / Inspection
1.Remove the stator cover (A) and water pump cover (B).
3.39
ENGINE
CAUTION
D
E
C
F
2871043
G
H
I
J
Counterbalance Gear
Camshaft Gear
Crank Gear
2.Remove the n ut (C), washer (D) and water pump impel ler
(E). Remove part of the water pump seal behind the
impeller.
3.Remove flywheel nut and washer.
4.Install Flywheel Puller (PN 2871043) and remove flywheel
(F).
5.Remove the starter bendix (G), wire holddown plate (H),
and the woodruff key (I) from the crankshaft. The stator
does not have to be removed at this point.
6.Remove the gear/stator housing bolts and remove the gear/
stator housing cover (J) and gasket from the crankcase. Be
sure to catch the excess oil from the crankcase.
Do not thread the puller bolts into the flywheel
more than 1/4, or stator coils may be damaged.
7.Note the position of the gears in the photo.
3.40
8.Use a white pen to accent the timing marks on the following
M
N
K
Timing Marks
Water Pump Gear
3 Loaded Springs
CAUTION
PU-45497-1
Accent Timing Marks
gears: camshaft gear (K), crankshaft gear (M), or
counterbalance gear (N) This will ensure proper gear
alignment and timing during reassembly of the gears.
NOTE: If replacing one of the gears, it is
recommended that all of the gears be replaced. A
gear kit is available.
9.Use the Cam Gear Tooth Alignment Tool (PU-45497-2) to
align and hold the cam split gear assembly. With the split
gear aligned, remove the bolt and cam gear assembly.
ENGINE
Wear safety glasses at all times. Use caution
when working with the top gear.
The springs could cause injury or become lost
should they pop out.
12. Remove all three springs using one of the tapered pins from
the Tapered Pins (PU-45497-1).
3
NOTE: Install the Cam Gear Tooth Alignment Tool
(PU-45497-2) into the assembly hole counter
clockwise from the timing mark (see page 3.42).
10. Inspect the cam gear teeth and check to make sure there is
spring tension offsetting the teeth between the two gears.
If there is no tension, check the springs inside of the cam
gear assembly.
11. The cam gear assembly contains three loaded springs. To
open the cam gear assembly:
• Place the cam gear on a flat surface with the timing
mark side facing up.
• While holding both gears together, lightly work a small
flathead screwdriver between the two gears.
13. With a white marking pen, accent the timing mark on the
gear that contains the springs.
• Remove the top gear. The springs should stay in place.
3.41
ENGINE
Inspect Teeth & Tabs
Replace 3 Springs
Install Springs
PU-45497-1
PU-45497-1
Align Timing Marks
14. Inspect the gear teeth and the three tabs on the gears for
wear.
15. Install the new springs into the grooves of the cam gear.
To Assemble:
• Hold the spring with one finger.
• Start the pointed end of the tapered pin into the cam
gear hole. Slowly push the dowel through the hole until
the end of the dowel is almost flush with the spring.
• Perform this procedure with all three tapered pins.
• Do not push the pins too far through or the springs will
pop out.
NOTE: Do not remove the tapered pins at this time.
17. Note in photograph that the Tapered Pins (PU-45497-1) are
below flush with end of the springs. This helps to align the
three gear tabs during the next step.
16. Insert the pointed dowels from the Tapered Pins (PU-
45497-1) into the cam gear.
Cam Gear Spring Installation Tool Kit:
(PU-45497)
Tapered Pins:
(PU-45497-1)
Cam Gear Tooth Align Tool:
(PU-45497-2)
18. Line up the two gears using the timing marks and the three
gear tabs that were referenced earlier. Push the gears back
together, using both hands and hold securely.
3.42
ENGINE
PU-45497-2
PU-45498
P
2871043
19. Once the gears are pressed together, firmly hold the gears
together with one hand. Carefully remove the Tapered Pins
(PU-45497-1) by p ulling them out one at a time with the
other hand.
20. After the tapered pins are removed, be sure the cam gear
assembly is held together tightly. Place the cam gear
assembly on a flat surface. Use the Cam Gear Tooth
Alignment Tool (PU-45497-2) to align the teeth of the cam
gears, as shown in the picture.
NOTE: Install the Cam Gear Alignment Tool (PU45497-2) into one assembly hole counter clockwise
from the timing mark.
21. To remove the balance shaft gear, the flat side of the
camshaft (P) must face the balance shaft gear. To rotate the
camshaft, use the Cam Spanner Wrench (PU-45498) to
rotate the camshaft so the flat side of the camshaft faces the
balance shaft gear.
3
NOTE: This Cam Spanner Wrench (PU-45498) is
only needed to rotate the c amshaft when the entire
valve train is assembled. If the rocker arms are
removed, the cam-shaft can be turned by hand.
22. Remove the bolt and nut from the balance shaft gear. Try
to remove the balance shaft gear. If the gear does not come
off manually, use the Flywheel Puller (PN 2871043) to
remove the balance shaft gear.
NOTE: For ease of installing the Cam Gear
Alignment Tool (PU-45497-2), use a twisting motion
when pushing down on the tool.
3.43
ENGINE
Q
R
2871043
S
Mark Rotors
Max Tip Clearance
0.006” (0.15 mm)
23. Inspect the crankshaft gear (Q) for broken or worn teeth. If
the crankshaft gear does not need to be replaced, it does not
need to be removed. If the crankshaft gear is damaged,
remove the crankshaft gear with the Flywheel Puller
(PN 2871043).
24. Install the two puller bolts (R). Tighten the puller bolts up
so that the bolts are at equal length.
26. Rotate the water/oil pump gear (S), so that all four bolts are
visible though the gear. Remove the four bolts with a hex
wrench. Pull out the pump.
27. Inspect the oil pump rotors for wear. Mark the rotors with
a white pen to ensure upon reassembly that the correct sides
of the rotors are installed and mesh with the same edges as
previously installed.
25. Install the Flywheel Puller (PN 2871043) and remove the
crankshaft gear, if needed.
3.44
NOTE: If replacing the old rotors, new replacement
rotors will fit into the original oil/water pump
housing.
28. Use a feeler gauge to measure the clearance between the
two rotors. Measure the gap between the two rotor tips as
shown below. The clearance should not exceed 0.006"(0.15 mm).
ENGINE
= T
22 ± 2 ft. lbs.
(30 ± 3 Nm).
Chamfer
End First
CAUTION
Press Off Gear
Press out shaft
and bearing
assembly.
Bearing
Retaining Ring
Press Off Bearing
29. Remove the oil pressure relief. The oil pressure relief
consists of a bolt, washer, spring, and valve (dowel).
Inspect the valve (dowel) for signs of possible obstructions.
Use compressed air to blow out any debris.
30. Reinstall the valve (dowel chamfered end first). Install the
spring, washer, and bolt. Torque to specification .
31. Carefully press the gear off the assembly while supporting
the housing assembly.
3
Wear appropriate safety gear during this
procedure. Protective gloves, clothing and eye
wear are required.
32. Remove the snap ring from the assembly. Place the housing
in a support and press out the bearing/shaft assembly.
NOTE: Be sure to place the tapered end of the valv e
(dowel) in first. If the valve is installed incorrectly, oil
pressure and oil priming problems will occur.
22 2 ft. lbs. (30 3 Nm)
33. Place the shaft in a press to remove the bearing.
3.45
ENGINE
Press On Bearing
Press Bearing / Shaft
Assembly using
outer race only
U
Separate
Crankcase Halves
34. Press shaft into the new bearing..
35. Press the bearing/shaft assembly using the bearing's outer
race. Do not use the shaft to press the assembly into the
housing, as bearing damage may result. Install retaining
ring.
37. Remove thrust plate (U).
38. Remove PTO end engine mount. Remove crankcase bolts.
Tap on the reinforced areas on the cases using soft hammer.
Carefully separate the two crankcase halves.
36. Press gear onto shaft while supporting the housing .
3.46
NOTE: Only remove the oil baffle if the baffle is
damaged. When removing the oil baffle bolts, use a
heat gun to heat the bolts and loosen the Loctite
This will prevent any possible damage to the bolts or
to the crankcase casting.
.
ENGINE
W
V
= In. / mm.
Cam Lobe Height
39. Remove and clean oil pick up (V) and oil baffle weldment
(W).
40. Remove balance shaft and crankshaft.
Camshaft Inspection
1.Thoroughly clean the cam shaft.
2.Visually inspect each cam lobe for wear, chafing or
damage.
3.Measure height of each cam lobe using a micrometer.
Compare to specification.
3
41. Remove and inspect crankshaft main journal bearings for
abnormal wear. It is recommended to replace thebearings anytime the engine is disassembled.
(PU-45778) and a 3/4-full oil filter before initial
start-up (see “Oil Pump Priming”).
NOTE: Before assembly, clean the bolts and bolt
holes with Primer N (PN 2874275) to remove any
debris. This will ensure proper sealing when
installing bolts.
1.Install oil pick up (A), if removed. Torque to specification.
6.Calculate oil clearance b y subtracting journal O.D.s from
journal bore I.D.s. Compare to specification.
Calculated Camshaft Oil Clearance:
Std: 0.0027" (.070 mm)
Limit: .0039" (.10 mm)
NOTE: Replace camshaft if damaged or if any part is
worn past the service limit.
2.Install oil baffle weldment (B). Torque bolts to
specification.
Oil Baffle Weldment & Oil Pick Up Bolt Torque:
60 ± 6 in. lbs. (6.8 ± 0.68 Nm)
3.Install the balance shaft. Inspect balance shaft clearance (C)
in both gearcase halves. Rotate balance shaft to ensure there
is clearance between it and the oil baffle weldment.
NOTE: Replace the engine crankcase assembly if
camshaft journal bores are damaged or worn
excessively.
3.48
ENGINE
D
E
= T
Apply Moly Lube
Cam Lobes
Lifters
NOTE: Always install new balance shaft bearings.
4.Apply assembly lube to cam journals and balance shaft
bearing surfaces of the MAG case halve. Install camshaft
and balance shaft.
5.Install cranksh aft assembly and apply engine oil to crank
pins and rods (D). Apply assembly lube to the main journals
and bearings.
7.Assemble the crankcase halves. Apply LocTite™ 242 (PN
2871949) to the threads and pipe sealant to the bolt flanges.
Torque bolts to specification following torque pattern at
beginning of this chapter.
Crankcase Bolt Torque:
22 2 ft. lbs. (30 3 Nm)
Torque in sequence
8.Lubricate cam lobes and valve lifters with Moly Lube
Grease.
3
6.Apply Crankcase Sealant (PN 2871557) to the top gearcase
halve.
NOTE: Do not apply sealant to cam relief hole (E).
9.Lubricate lifters with engine oil and install in the original
order as removed in disassembly. Apply Lubricant or Moly
Lube to the ends of the lifters.
NOTE: Always replace the camshaft and lifters as a
set.
3.49
ENGINE
Piston Ring
Orientation
1
2
3
1. Top Ring
2. Second Ring
3. Oil Ring
Push in Piston Pins
Piston Pin Cirlcip in
12 O’clock position
10. Lubricate connecting rods with PS-4 PLUS synthetic
engine oil.
11. Install new cylinder gasket on crankcase. Align gasket on
the dowel pins for proper gasket alignment.
13. Install piston assemblies into cylinder aligning the piston
pin holes, to ensure proper alignment of the pistons to the
connecting rods upon assembly. Partially install the piston
pins into the pistons.
NOTE: To help align the pistons, slide a rod that is
close to the same diameter as the wrist pin holes to
properly align them in the cylinder.
14. Position cylinder and piston assemblies onto the connecting
rods and push the piston pins through the piston and
connecting rods.
12. Orientate the piston rings on the piston before installation
into the cylinders. Set the gaps of the rings every 120° (see
illustration below).
3.50
15. Install the piston pin circlips. The circlip ends should be
installed at the 12 O'clock position.
ENGINE
= T
G
Line Up Marks
Lubricate Rotors
NOTE: While installing in piston circlips, cover all
engine passages. The clip could fall into the engine
during installation.
16. Install camshaft thrust plate (G) with new bolts. Torque
bolts to specification.
NOTE: New bolts have patch lock on the threads
and do not require Loctite™.
17. Assemble rotors as marked when disassembled. Use a
cleaner to remove the marks previously made on the rotors.
3
18. Apply assembly lube or oil to the rotors on the oil pump
shaft.
NOTE: The application of lubrication aids in priming
the oil pump during initial engine start up.
Thrust Plate Screw Torque:
115 ± 12 in. lbs. (13 ± 1.35 Nm)
19. Align the bolt holes and install oil pump assembly into
crankcase. Rotate the rotors in the housing during
installation, as this checks for binding if new rotors are
used.
NOTE: For assembly of the gears, the cam gear and
the crankshaft gear are stamped with “This Side
Out". This indicates the side of the gear that faces
outward or away from the case.
NOTE: Before assembly, clean the bolts and bolt
holes with Primer N (PN 2874275) to remove any
debris. This will ensure proper sealing when
installing bolts and new Loctite™.
3.51
ENGINE
= T
H
CAUTION
I
J
I
20. Install oil pump housing bolts (H). The new bolts con tain
patch lock, so Loctite
Torque bolts to specification and follow the torque
sequence at beginning of the chapter.
NOTE: Occasionally spin the oil pump when
installing bolts to check for binding of the rotors.
Oil Pump Bolt Torque:
84 8 in. lbs. (9.50 0.90 Nm)
* Torque in Sequence
21. Apply Loctite 242 (PN 2871949) to the crankshaft.
is not needed on the new bolts.
22. Before installing the crankshaft gear (I), heat the crankshaft
gear to 250
The crankshaft gear is extremely hot! Severe
burns or injury can occur if the gear is not
handled with extreme care and caution. Follow
the procedure below to help ensure safety.
23. Use extreme caution when removing the crankshaft gear
from the hot plate. Use a pair of pliers and leather gl oves
when handling the crankshaft gear.
24. Install the crankshaft gear (I) onto the crankshaft.
F (121C) on a hot plate (J).
NOTE: For assembly of the gears, the cam gear and
the crankshaft gear are stamped with “This Side
Out". This indicates the side of the gear that faces
outward or away from the case.
3.52
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.