The machine model number must be used with any correspondence regarding warranty or service.
Machine Model Number Identification
A09CA32AA
Emissions &
Year Designation
Basic Chassis
DesignationEngine Designation
Model Option
ENGINE DESIGNATION NUMBERS
ES32PFESingle, Air Cooled, SOHC 4 Stroke, Electric Start..................
VIN IDENTIFICATION
World Mfg. ID
123456789 10 11 1213 1415 1617
4XAAA
Vehicle Descriptor
32A*9P0 00000
Vehicle Identifier
Body Style
Powertrain
Emissions
Engine
Check Digit
Model
Year
Plant No.
Individual Serial No.
* This could be either
a number or a letter
ENGINE SERIAL NUMBER LOCATION
Whenever corresponding about an engine, be sure to refer to the engine model number and serial number. This
information can be found on the sticker applied to the recoil housing on the right side of engine.(A) An additional
number is stamped on the center top of crankcase beneath the cylinder coolant elbow.
UNIT MODEL NUMBER AND SERIAL NUMBER LOCATION
Themachinemodelnumber andserialnumberare
important for vehicle identification. The machine
serial number is stamped on the lower left side of
the frame tube.(B)
A
Front
B
TRANSMISSION I.D. NUMBER
LOCA
TION
The transmission I.D. number is located
on top of the transmission, right side of
machine.
1.2
PUBLICATION NUMBERS
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GENERAL INFORMATION
YearModelModel No.Owner’s
Manual PN
2009Trail Boss 330A09CA32AA99217849921774
2009Trail Blazer 330A09BA32AA99217739921787
NOTE: When ordering service parts be sure to use the correct parts manual.
NOTE: Some manuals can be found at the Polaris website: www.polarisindustries.com or purchased from
www.purepolaris.com.
Parts
Manual PN
PAINT CODES
FRAME COLOR - P067 Medium Gloss Black 9440 / 8520147.
REPLACEMENT KEYS
Replacement keys can be made from the original
key. To identify which series the key is, take the
first two digits on the original key and refer to the
chart to the right for the proper part number.
Shouldbothkeysbecomelost, ignition switch
replacement is required.
Length75 in./191 cm
Width46 in./117 cm
Height46 in./117 cm
Wheel Base49.5 in./125.73 cm
Ground Clearance5.5./13.97 cm
Dry Weight505 lbs./230 kg
Gross Vehicle Weight845 lbs./383 kg
Front Rack Capacity
Rear Rack Capacity
Towing Capacity
Hitch TongueWeight
Body Style
Dimension
75 lbs./34 kg
125 lbs./57 kg
850 lbs./385 kg
85 lbs./14 kg
Gen IV
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MODEL:2009 TRAILBOSS 330..........
MODEL NUMBER:A09CA32AA.
ENGINE MODEL:ES32PFE..
Engine
PlatformFuji 4 stroke, Single Cylinder
Engine Model NumberEH32PFE
Engine Displacement329cc
Number of Cylinders1
Bore & Stroke (mm)78.5 x 68 mm
CompressionRatio9.2:1
Compression Pressure70--90 psi
Engine Idle Speed1300 ± 100 Rpm
Cooling System/CapacityOil/ Air w/ fan assist
Transmission TypeInline H/N/R
Transmission Capacity11.3 oz. (335 ml)
Gear Ratio :High
Rev.
Final
Chain Type520 O--Ring
Clutch TypePVT Non EBS
Belt3211077
2.68/1
3.05/1
11/40 78P
Steering / Suspension
Front Suspension / ShockA--arm / MacPherson Strut
Front Travel8.2 in. / 20.83 cm
Rear Suspension
Style / Shock
Rear Travel10.5 in. / 26.67 cm
Ground Clearance5.5in. / 13.97 cm
Shock Preload Adjustment
Front / Rear
Turning Radius83in./211cm
Toe Out1/8 -- 1/4 in / 3 -- 6.35 mm
Progressive Rate Swingarm /
Twin Tube Gas Charged
Front -- n/a
Rear -- Cam
Wheels / Brakes
Wheel Size -- Front / Pattern23 x 7 -- 10 / 4--156
Wheel Size -- Rear / Pattern22 x 11 -- 10 / 4--102
Air Press. F/R Tires4 psi Front / 3 psi Rear
Brake -- FrontDual Hydraulic Disc
Brake -- RearSingle Hydraulic Disc
Brake FluidPolaris DOT 4 Brake Fluid
JETTING CHART
Altitude
Meters
(Feet)
0--1800
(0--6000)
above 1800
(above 6000)
AMBIENT TEMPERATURE
Below 40°F
Below 5°C
127.5122.5
120
+40°Fto+80°F
+5°Cto+28°C
115
CLUTCH CHART
Driven
Helix
(5131446)
(5131446)
Meters
(Feet)
Altitude
0--1800
(0--6000)
1800--3700
(6000--12000)
Shift
Weight
10 RH
(5630709)
20--40
(5631356)
Drive
Spring
Blu/Grn
(7041157)
Blu/Grn
Driven
Spring
Black
(7041782)
Black
(7041782)(7041157)
45°
2--2
45°
2--2
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MODEL:2009 TRAILBLAZER 330..........
MODEL NUMBER:A09BA32AA.
ENGINE MODEL:ES32PFE..
Category
Length75 in./191 cm
Width46 in./117 cm
Height46 in./117 cm
Wheel Base48 in./121.9 cm
Ground Clearance5.5./13.97 cm
Dry Weight488 lbs./221 kg
Gross Vehicle Weight830 lbs./377 kg
Front Rack Capacity
(Accessory)
Rear Rack Capacity
(Accessory)
Towing Capacity
Hitch TongueWeight
(Accessory)
Body Style
Dimension
30 lbs./13.6 kg
60 lbs./27.2 kg
850 lbs./385 kg
85 lbs./14 kg
Gen III
1.6
MODEL:2009 TRAILBLAZER 330..........
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MODEL NUMBER:A09BA32AA.
ENGINE MODEL:ES32PFE..
Engine
PlatformFuji 4 stroke, Single Cylinder
Engine Model NumberES32PFE
Engine Displacement329cc
Number of Cylinders1
Bore & Stroke (mm)78.5 x 68 mm
CompressionRatio9.2:1
Compression Pressure70--90 psi
Engine Idle Speed1300 ± 100 Rpm
Cooling System/CapacityOil/ Air w/ fan assist
NOTE: Polaris dealers can order the tools listed above through the SPX Service T ools catalog.
1.8
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STANDARD TORQUE SPECIFICATIONS
Thefollowing torquespecificationsare tobeused as a generalguideline. FOR SPECIFICTORQUE VALUESOF
FASTENERS Refer to exploded views in the appropriate section. There are exceptions in the steering,
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″ or1 cm). Polaris measures chainlength in number of pitches.
CI: Cubic inches.
Clutch Buttons: Plastic bushings which aid rotation of the movable sheave in the drive and driven clutch.
ClutchOffset: Drive anddriven clutchesare offset sothatdrive beltwill staynearly straightas it movesalong the clutchface.
Clutch Weights: Three levers in the driveclutch which relative to theirweight, profile and engine RPMcause thedrive
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.
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. Anelectrical 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 direction.
lorltr: 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
windings. Mechanical energy is converted to electrical energy in the stator.
mi.: Mile/miles.
mm: Millimeter. Unit of length in the metric system. 1mm = 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 T ank: Thefill 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.
SeizedPiston: Gallingofthe sides ofa piston. Usuallythereis atransferofaluminumfromthepistonontothecylinderwall.
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.
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Periodic Maintenance Chart2.2-2.5...............
Recommended Maintenance Products2.6--2.7......
Pre-Ride Inspection2.8......................
ATV Component Locations2.9................
Lubricant and Maintenance Quick Reference2.10-2.11
Careful periodic maintenance will help keep your vehicle in the safest, most reliable condition. Inspection,
adjustment and lubrication of important components are explained in the periodic maintenance chart.
Inspect, clean, lubricate, adjust and replace parts as necessary.When inspection reveals the need for
replacement parts, use genuine Polaris parts available from your Polaris dealer.
NOTE:Service and adjustments are critical. If you’re not familiar with safe service and adjustment
procedures, have a qualified dealer perform these operations.
Maintenance intervals in the following chart are based upon average riding conditions and an average vehicle
speedofapproximately10 milesperhour. Vehiclessubjectedto severeuse mustbe inspectedandservicedmore
frequently.
Severe Use Definition
GFrequent immersion in mud, water or sand
GRacing or race-style high RPM use
GProlonged low speed, heavy load operation
GExtended idle
GShort trip cold weather operation
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.
Maintenance Chart Key
The following symbols denote potential items to be aware of during maintenance:
H= CAUTION: Due to the nature of these adjustments, it is recommended this service be performed
by an authorized Polaris dealer.
"= SEVERE USE ITEM ----If vehicle is subjected to severe use, decrease interval by 50%
(Severe Use is defined as frequent vehicle immersion in mud, water or sand, racing or race-style high rpm
use, prolonged low speed - heavy load operation or extended idle. More preventative maintenance is
required under these conditions. Fluid changes, cable, chain and chassis lubrication are required more
frequently. For engine oil, short trip cold weather riding also constitutes severe use. Pay special attention
to oil level. A rising oil level in cold weather can indicate contaminants collecting in the oil sump or
crankcase. Change oil immediately and monitor level. If oil level begins to rise, discontinue use and
determine cause.)
E= Emission Control System Service (California).
NOTE: Inspection may reveal the need for replacement parts. Always use genuine Polaris parts.
WARNING: Improperly performing the procedures marked with a
to serious injury or death. Have an authorized Polaris dealer perform these services.
J could result in component failure and lead
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MAINTENANCE AND LUBRICATION
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Periodic Maintenance Chart
MAINTENANCE
ItemMaintenance Interval
(whichever comes first)
HoursCalendarMiles
(Km)
J
Steering
"
Front suspension
"
Rear suspension
Tires
"
Brake fluid level
"
Brake lever travel
Brake systems
Drive Chain
Wheels/fasteners
Frame fasteners
" Perform these procedures more often for vehicles
subjected to severe use.
E Emission Control System Service (California)
J Have an authorized Polaris dealer perform these
services.
Choke cable50 H6M310 (500)Inspect; adjust; lubricate; replace if necessary
E
E
Carburetor air
intake ducts/
flange
Drive belt50 H6M310 (500)Inspect; adjust; replace as needed
Cooling system
(if applicable)
"
Engine oil change100 H6M620
E
"
Oil filter change100 H6M620
E
"
Oil tank vent hose100 H12 M620
E
J
Valve clearance100 H12 M620
E
25 HMonthly155 (250)Inspect; replace if necessary
25 H1M155 (250)Perform a break-in oil change at one month
50 H3M310 (500)Lubricate all grease fittings, pivots, cables, etc.
50 H6M310 (500)Drain bowl periodically and prior to storage
50 H6M310 (500)Inspect; adjust; lubricate; replace if necessary
50 H6M310 (500)Inspect ducts for proper sealing/air leaks
50 H6M310 (500)Inspect coolant strength
(whichever comes first)
(Km)
(1000)
(1000)
(1000)
(1000)
seasonally; pressure test
system yearly
Perform a break-in oil change at 25 hours/one
month
Replace with oil change
Inspect routing, condition
Inspect; adjust
Remarks
" Perform these procedures more often for vehicles
subjected to severe use.
E Emission Control System Service (California)
J Have an authorized Polaris dealer perform these
services.
Check for leaks at tank cap, lines, fuel valve, filter, pump, carburetor; replace lines every two
years
Replace yearly
Inspect; clean external
surfaces
Inspect for leaks
Inspect
Inspect
Inspect; replace as needed
Inspect
Inspect for wear, routing,
security; apply dielectric grease to connectors
subjected to water, mud, etc.
Inspect; clean; replace worn parts
Inspect; replace as needed
Change every two years
Clean out
Adjust as needed
Inspect periodically; adjust when parts are replaced
Inspect daily; adjust as needed
Adjust as needed
" Perform these procedures more often for vehicles
subjected to severe use.
E Emission Control System Service (California)
J Have an authorized Polaris dealer perform these
services.
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POLARIS LUBES/FLUIDS FOR TRAILBOSS 330 MODELS
Pure Polaris Lubricants and Maintenance Kits can be purchased at your local Polaris dealer.
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POLARIS LUBRICANTS,MAINTENANCE AND SERVICE PRODUCTS
Part No.Description
Engine Lubricant
2870791FoggingOil (12 oz. Aerosol)
2876244Engine Oil (Quart)Premium 4 Synthetic
2W--50 (4--Cycle) (12 Count)
2876245Engine Oil (Gallon) Premium 4 Synthetic
2W--50 (4--Cycle) (4 Count)
Gearcase / Transmission Lubricants
2873602Premium Synthetic AGL Gearcase Lube
(12 oz. bottle)(12 Count)
2873603Premium Synthetic AGL Gearcase Lube
(1 Gal.) (4 Count)
2876160Premium ATV Angle Drive Fluid
(32 oz.) (12 Count)
2872276Premium ATVAngle Drive Fluid
(2.5 Gal) (2 Count)
2870465Oil Pump for 1 Gallon Jug
2871654Premium Demand Drive Hub Fluid
number in the table above indicates the number of
units that are shipped with each order.
NOTE: Each item can be purchased separately at
your local Polaris dealer.
POLARIS LUBRICANT SYMBOL IDENTIFICATON
AGL
Polaris DOT 4
Brake Fluid
Polaris Sythetic
Gearcase Lube
AGL
U--Joint
Polaris U--Joint Lube
2W/50
Polaris Sythetic
OW--40 Oil
DHF
Polaris Demand
Drive Hub Fluid
Polaris All Season Grease
ADF
Polaris ATV
Angle Drive Fluid
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PRE-RIDE / DAILY INSPECTION
Perform the following pre-ride inspection daily, and when servicing the vehicle at each scheduled maintenance.
GTires - check condition and pressures
GFuel and oil tanks - fill both tanks to their proper level; Do not overfill oil tank
GAll brakes - check operation (includes auxiliary brake)
GThrottle - check for free operation
GHeadlight/Taillight/Brakelight - check operation of all indicator lights and switches
GEngine stop switch - check for proper function
GWheels - check for loose wheel nuts
GAir cleaner element - check for dirt or water; clean or replace
GSteering - check for free operation, noting any unusual looseness in any area
GLoose parts - visually inspect vehicle for any damaged or loose nuts, bolts or fasteners
GEngine coolant - check for proper level at the recovery bottle
COLD WEATHER KITS FOR 4 STROKE ATVS
Engine Heater -- (PN 2871507)
ACCESSORY ENGINE HEATER
2.8
TRAIL BOSS 330 COMPONENT LOCATIONS
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Brake Fluid Reservoir
Brake Lever
Light Control
& Run Switch
Fuel Valve
Front Rack
Reverse
Override
Choke
Rear Axle &
Drive Sprocket
MAINTENANCE
Display
Throttle
Ignition/Key
Headlights
Transmission
Engine
Recoil
Right Side View
Oil Dipstick
Muffler
Auxiliary Brake
PVT Cover
Gear Shifter
Front Rack
Engine
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MAINTENANCE QUICK REFERENCE
Ill.
#
1Engine OilPolaris 2W--50
2TransmissionPolarisAGL Lu-
3Brake FluidPolaris DOT 3
4DriveChainPolaris Chain
NOTE: Refer to Page 2.6 for the Polaris Lubricant Identification table.
ItemLube Rec.MethodFrequency*
Add oil to proper level.Change after1st month, 6 months or 100
Synthetic
Add lube to FULL level on dip-
bricant
Brake Fluid
Lube or O-Ring
chain lube
Dipstick
2W/50
stick.
Fill master cylinder reservoir to in-
dicated level inside reservoir. See
Page 2.29.
Apply to chain link plates and rollers.
hours thereafter; Change more often (25-50
hours) in extremely dirty conditions, or short
trip cold weather operation.
Locate grease fitting on back side of struts and
grease with grease gun.
Lift boot. Clean away dirt and grease. Apply fresh
grease by hand and reassemble.
Locate grease fitting on swing arm and grease with
grease gun.
Locate grease fitting on eccentric and grease with
grease gun.
Semi-annually
¡
Semi-annually
¡
Semi-annually
¡
Semi-annually
¡
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TRANSMISSION LUBRICATION
The transmission lubricant level should be checked
and changed in accordance with the maintenance
schedule.
GBe sure vehicle is level before
proceeding.
GCheck vent hose to be sure it is
routed properly and unobstructed.
GFollowinstructionsonfollowing
pagestocheck/change
transmission lubricant.
TRANSMISSION SPECIFICATIONS
Specified Lubricant:
Polaris AGL Gearcase Lubricant:
(PN 2873603) (Gallon) (PN 2873602) (12 oz.)
Capacity:11.3 oz. (335 ml)
Drain Plug / Fill Plug T orque:
14 ft. lbs. (19.4 Nm)
Transmission
Dipstick
Full
Operating
Range
TRANSMISSION FLUID
CHANGE/TORQUE ST
OP
ADJUSTMENT
1.Remove skid plate (if necessary).
2.Place a drain pan beneath the transmission oil
drain plug area.
3.Loosen jam nut (A).
4.Turn adjuster bolt (B) in to allow the removal of
drain plug.
5.Removethedrainplug andwipethe magneticend
clean to remove accumulated metallic filings.
6.After the oil has drained completely, install a new
sealing washer and install the drain plug. Torque
to 14 ft. lbs. (19.3 Nm).
7.Turn adjuster bolt (B) out until it touches the
frame, and then an additional 1/2 turn.
PVT Cover
B
To check the level:
1.Remove dipstick and wipe clean.
Forward
8.Tighten the jam nut securely while holding the
adjuster bolt.
9.Addthe proper lubricant through the dipstick hole
until the oil level is between the upper and lower
2.Reinstall dipstick completely, remove and check
the level. Add the proper lubricant as required to
bring level into operating range as shown.
limits. Do not overfill.
10. Check for leaks.
11.ReinstallskidplateifremovedinStep1.
A
Drain Plug
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LUBRICATION / GREASE
POINTS
As shown on Page 2.8, there are only five grease
zerks onthe TrailBoss,two front balljoints,two onthe
swing are pivots, and one on the rear axle housing.
Swing Arm Pivot
Each Side
Ball Joint Zerk
Each Side
Ball Joint Zerk
TRANSMISSION GEARSHIFT
LINKAGE
ADJUSTMENT/
INSPECTION
Linkage rod will rotate
1/8 -1/4 turn if rod ends
are tightened properly.
Parallel
Correctly Tightened
Jam Nut
GIfshiftingproblems areencountered,
thetransmission linkagemayrequire
adjustment.
GVisually check for contact of shift
lever to shifter opening in the front
fender. Ensure shift linkage or shift
lever is not contacting the frame or
exhaust components.
GTightenshiftlinkage rodendjam nuts
properly after adjustment.You
should be able to rotate the linkage
rod between 1/8 and 1/4 turn after
both jam nuts are tight.
GThetransmissionshiftlinkage
should be periodically inspected for
wear and parts replaced as required
to remove excess play from shift
linkage.
GRefer to Transmission chapter for
more information.
Incorrectly Tightened
Jam Nut
NOTE: Therod end must be held whentighteningthe
jam nut to prevent damage to the rod end.
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SHIFT LINKAGE
ADJUSTMENT
1.Inspect shift linkage tie rod ends, clevis and pivot
bushings and replace if worn or damaged.
2.Place gear selector in neutral.
3.Loosen rod end adjuster jam nuts (A) on both
ends of linkage rod. NOTE: The jam nut closest
to the knurled end is Left Hand thread.
Jam Nuts (A)
Linkage Rod
Ill. 1
THROTTLE OPERATION - ALL
MODELS
Check for smooth throttle opening and closing in all
handlebar positions. Throttle lever operation should
be smooth and lever must return freely without
binding.
1.Place the gear selector in neutral.
2.Set parking brake.
3.Start the engine and let it idle.
4.Turn handlebars from full right to full left. If idle
speed increases at any point inthe turningrange,
inspect throttle cable routing and condition. If
cable is routed properly and in good condition,
repeat adjustment procedure.
5.Replace the throttle cable if worn, kinked, or
damaged.
CHOKE (ENRICHER)
ADJUSTMENT
4.Turn linkage rod (A) to shorten or lengthen rod
until the shift lever is centered on hole in the fender.
A
5.Hold rod end parallel to mounting surface and
tighten jam nuts securely.
Boot
If the choke knob does not stay out when pulled,
adjust the choke tension by tightening the tensioner
located under the rubber boot between the choke
knob and nut.Firmly grasp the rubber boot and
tighten until thechoke slides freely but stays out when
pulled.
Verify free play of 1/16--3/16” (1.6--4.76 mm) and
smooth operation of choke cable.
If smooth choke operation is not obtainable, inspect
choke cable for kinks or sharp bends in routing.
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PILOT SCREW
Thepilotsystem suppliesfuelduringengine operation
with the throttle valve closed or slightly opened. The
fuel/air mixture is metered by pilot screw and
discharged into the main bore through the pilot outlet.
CAUTION:
The pilotscrew is calibratedatthe factoryto meetEPA/ CARB
regulationsfor air qualitystandards and is sealed with a brass
plug to prevent tampering. Removal of the tamper proof plug
is not permitted. For service purposes, cleaning of the pilot
circuitcan be done only by a certifiedrepairshop to ensure air
quality standards are not exceeded.
Pilot Screw location
PILOT SCREW ADJUSTMENT
FRONT
(Engine)
Pilot Screw
View -- Right Cover Panel Removed
Pilot Screw
1.Start engine and warm it up to operating
temperature (about 10 minutes).
Brass Plug Installed
Brass Plug Removed
2.Turnpilot screw in (clockwise) until lightly seated.
Turn screw out the specified number of turns.
NOTE: Do not tighten the pilot screw forcefully
against the seat or the screw and/or seat will be
permanently damaged.
The pilot screw is set at the factory.
Each carburetor will have a slightly different pilot screw setting, the adjustments below are the recommended settings, the settings may differ from these
recommendations.
Pilot Screw Adjustment:
Trailboss 330 -- 2 Turns Out
3.Connect an accurate tachometer that will read in
increments of + or -- 50 RPM such as the PET
2100DX (PN 8712100DX) or the PET 2500 (PN
8712500).
4.Set idle speed to 1200 RPM.Always check
throttle cable freeplay after adjusting idle speed
and adjust if necessary.
5.Slowly turn mixture screw clockwise using the
pilot screw wrench until engine begins to miss.
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6.Slowly turn mixture screw counterclockwise until
idlespeedincreasestomaximumRPM.
Continue turning counterclockwise until idle RPM
begins to drop.
7.Center the pilot screw between thepoints in Step
5 and 6.
8.Re adjust idle speed if not within specification.
IDLE SPEED ADJUSTMENT
1.Start engine and warm it up thoroughly.
CV Carburetor
Idle Screw
confirm adjustment.
Boot
Adjuster
Sleeve
Direction
of travel
3.Tighten locknut and slide boots over cable
adjuster until they touch at the middle point of the
adjuster.
4.Withengine running, turn the handlebars fromfull
left to full right with transmission in neutral.
Engine RPM should not change and the engine
should not die. If either of these occur, return to
the first step.
Lock-
nut
1/16″ -1/8″
Freeplay
Boot
THROTTLE OPERATION
To remove the ETC cover:
Idle Speed:
1300 ± 100 RPM
2.Adjust idle speed by turning the idle adjustment
screwin(clockwise)toincreaseorout
(counterclockwise) to decrease RPM. (Refer to
Ill. at right).
NOTE: Adjusting theidle speed affects throttle cable
freeplayandelectronicthrottlecontrol(ETC)
adjustment.Always check throttle cable freeplay
after adjusting idle speed and adjust if necessary.
ELECTRONIC THROTTLE
CONTROL (ETC
THROTTLE
CABLE
SWITCH)/
ADJUSTMENT
1.Slide the boots off inline cable adjuster sleeve.
Loosen adjuster locknut.
2.With handlebars centered and wheels pointing
forward, turn adjuster sleeve until 1/16″ -1/8″
freeplay is achieved at the thumb lever. After
making any adjustment, “flip” the lever slightly to
1.Use a medium flat blade screwdriver and insert
blade into the pockets of the cover starting on the
#1 position.
3
6
5
2.Twistscrewdriver slightly while lifting onthecover
to release snap.
3.Repeat procedure at the other five locations as
shown. NOTE: Do not attempt to remove cover
until all latch points are released.
Check for smooth throttle opening and closing in all
handlebar positions. Throttle lever operation should
be smooth and lever must return freely without
binding. Replace the throttle cable if worn, kinked, or
2
1
4
2.16
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damaged.
NOTE: When replacing the cover, check for correct
placement of cover O-ring.
FUEL SYSTEM
WARNING
Gasoline is extremely flammable and explosive
under certain conditions.
FUEL LINES
Fuel Lines
Fuel Pump
Pulse Line
Ill.1
1.Check fuel lines for signs of wear, deterioration,
damage or leakage. Replace if necessary.
2.Besurefuel linesare routed properly andsecured
with cable ties. CAUTION: Make sure lines are
not kinked or pinched.
3.Replace all fuel lines every two years.
GAlways stop the engine and refuel
outdoors or in a well ventilated area.
GDo not smoke or allow open flames
or sparks in or near the area where
refueling is performed or where
gasoline is stored.
GDonot overfill the tank. Donot fill the
tank neck.
GIf you get gasoline in your eyes or if
you swallow gasoline, seek medical
attention immediately.
GIf you spill gasoline on your skin or
clothing, immediately wash it off with
soapand water and change clothing.
GNever start the engine or let it run in
an enclosed area. Engine exhaust
fumes are poisonous and can result
loss of consciousness or death in a
short time.
GNever drain the float bowl when the
engine is hot.Severe burns may
result.
VENT LINES
1.Check fuel tank, oil tank, carburetor, battery 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. CAUTION: Make sure
lines are not kinked or pinched.
FUEL FILTER
The fuel filter should be replaced in accordance with
the Periodic Maintenance Chart. The fuel filter is
located between the fuel pump and carburetor.
1.Shut off fuel supply at fuel valve.
2.Remove line clamps at both ends of the filter.
3.Remove fuel lines from filter.
4.Install new filter and clamps onto fuel lines with
arrow pointed in direction of fuel flow.
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Arrow Indicates Direction
of Flow
RES
OFF
To Carburetor
ON
Fuel Valve
5.Install clamps on fuel line.
6.Turn fuel valve ON.
7.Start engine and inspect for leaks.
CARBURETOR DRAINING
Thecarburetor floatbowl shouldbe drained
periodically to remove moisture or sediment from the
bowl, or before extended periods of storage.
Drain tube
attached
here
Drain Screw
NOTE: Thebowl drain screwis located onthebottom
left side of the float bowl.
1.Turn fuel valve to the off position.
2.Place a clean container beneath the bowl drain
spigot or bowl drain hose.
3.Turn drain screw out two turns and allow fuel in
the float bowl and fuel line to drain completely.
4.Inspect the drained fuel for water or sediment.
5.Tighten drain screw.
6. Turnfuelvalveto“ON”.
7.Start machine and check for leaks.
NOTE:If there is a tube attached, it must be
reattached as this will effect engine performance.
COMPRESSION TEST
NOTE: This Polaris 4-Strokeengine is equipped with
an automatic decompressor. Compression readings
will vary in proportion to cranking speed during the
test.Average compression (measured) is about
70--90 psi
Smooth idle generally indicates good compression.
Low engine compression is rarely a factor in running
condition problems above idle speed.Abnormally
high compression can be caused by a decompressor
malfunction, or worn or damaged exhaust cam lobes.
Inspect camshaft and automatic decompression
mechanism if compression is abnormally high.
A cylinder leakage test isthe best indication ofengine
condition on models with automatic decompression.
Follow tester manufacturer’s instructions to perform
a cylinder leakage test. (Never use high pressure
leakagetesters ascrankshaft seals may dislodgeand
leak).
during a compression test.
Cylinder Compression
Standard 70--90 PSI
Cylinder Leakage
Service Limit:10 %
(Inspect for cause if leakage exceeds 10%)
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