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Snowmobile Lynx DEEP SNOW SPORT SERIES. OPERATOR’S GUIDE (2023) - page 2

INJECTION OIL

Recommended Injection Oill

Rotax^® engines were developed and validated using the XPS^® oil.

BRP recommends the use of its XPS injection oil or an equivalent at

all time. Damages caused by the use of an injection oil not suitable for

this 2-stroke direct fuel injection engine may not be covered by the

BRP Limited Warranty.

RECOMMENDED Injection Oil

850 E-TEC

XPS 2T E-TEC Synthetic Oil (full synthetic)

IF THE RECOMMENDED XPS ENGINE OIL IS NOT

AVAILABLE

Use a 2-stroke lubricant designed for snowmobiles meeting or

exceeding the following lubricant industry specifications:

- JASO FD (M345-2004)

- SAE Grade 4 (F / M 4)

Injectiion Oiil Level Veriifiicatiion

The injection oil reservoir is located behind the LH side panel. Refer to

Equipment for opening procedure.

Always maintain a sufficient amount of recommended injection oil in

the injection oil reservoir.

TYPICAL

152

INJECTION OIL

Marks on the tank indicates "1/4" and "1/2" of the total amount of oil.

NOTICE

Check level and refill every time you refuel.

Adding Injection Oil

Remove injection oil reservoir cap.

Add injection oil.

NOTE:

Do not overfill.

Wipe the reservoir cap seal and flange area.

Reinstall cap.

NOTICE

Do not overtighten.

WARNING

Wipe off any oil spills. Oil is highly flammable when heated.

153

BASIC PROCEDURES

Remove the drive belt guard. Refer to Body and Seat.

WARNING

Do not wind starting rope around your hand. Hold rope by the

handle only. Do not start the engine by the drive pulley unless it

is a true emergency situation. Have the snowmobile repaired

as soon as possible.

Attach one end of emergency rope to the rewind handle.

NOTE:

The suspension adjustment tool can be used as an emergency

handle.

Cross the rope on the first turn as shown.

156

BASIC PROCEDURES

1. Rope crossed

2. Rope to be winded

3. Rope end

Wind rope two turns counterclockwise tightly around the drive pulley

where shown.

Pull the rope using a sharp, crisp pull so the rope comes free of the

drive pulley.

157

BASIC PROCEDURES

Start engine as per usual manual starting.

WARNING

When starting the snowmobile in an emergency situation, using

drive pulley, do not reinstall the belt guard and return slowly to

have snowmobile repaired.

Vehiiclle Warm-Up

Before every ride, vehicle has to be warmed up as follows.

1. Start engine as explained in Engine Starting Procedure above.

2. Allow engine to warm up one or two minutes at idle speed.

NOTE:

Engine will shut down after approximately 12 minutes of idling.

3. Disengage parking brake.

4. Apply throttle until drive pulley engages. Drive at low speed the first

two or three minutes.

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- Inside the skis leg (narrowest ski stance setting: easiest to initiate

turn on sidehills), or

- Outside the skis leg (widest ski stance setting: most stable on cor-

ners), or

- On each side (central setting: best steering accuracy on deep

snow).

1. Spacers

2. Axle

3. Stopper

4. Screw

5. Washer

6. Nut

TIGHTENING TORQUE

48 ± 6 Nm

Ski nut

(35 ± 4 lbf-ft)

Front Springs

Front spring preload has an effect on front suspension firmness.

Front spring preload also has an effect on the steering behavior.

Action

Result

Increasing preload

Firmer front suspension

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Action

Result

Higher front end

More precise steering

More bump absorption

capability

Softer front suspension

Lower front end

Decreasing preload

Lighter steering

Less bump absorption

capability

Cam Type Adjuster

Using the suspension adjustment tool provided in the tool kit, turn the

cam to increase or decrease the spring preload.

1. Increase preload

2. Decrease preload

Ring Type 1 Adjuster

Grab and turn the ring and the spring to increase or decrease the

spring preload.

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1. Increase preload

2. Decrease preload

Ring Type 2 Adjuster

Grab and turn the ring and the spring to increase or decrease the

spring preload.

1. Increase preload

2. Decrease preload

Front Shock Absorber Adjustments (KYB PRO R Series Only)

Compression Dampiing (iif equiipped)

NOTE:

Both low and high speed compression damping are adjusted

simultaneously.

Low speed compression damping controls how the shock absorber re-

acts to a low suspension velocity (slow compression strokes, in most

cases when riding at lower speeds).

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High speed compression damping controls how the shock absorber

reacts to a high suspension velocity (quick compression strokes, in

most cases when riding at higher speeds).

To adjust, turn the adjuster button located on the reservoir.

3 POSITIONS COMPRESSION DAMPING ADJUSTER BUTTON

Result on big and

Turning

Action

small bumps

Increasing

Firmer compression

Clockwise

compression

damping

damping force

Decreasing

Counter

Softer compression

compression

Clockwise

damping

damping force

Rebound Damping

Rebound damping controls how the shock absorber restrains the ex-

tension stroke.

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1. Rebound adjuster

Result on big and

Turning

Action

small bumps

Firmer rebound

Increasing rebound

Clockwise

damping (slower

damping force

extension speed)

Softer rebound

Counter

Decreasing rebound

damping (faster

Clockwise

damping force

extension speed)

NOTE:

In repetitive short small bumps (ripple), it is recommended to use a

lower rebound damping setting.

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Rear Suspension Adjjustments

TYPICAL - ADJUSTABLE COMPONENTS

1. Rear spring

2. Stopper strap

3. Center spring

4. Center shock absorber

5. Rear shock absorber

NOTICE

Whenever adjusting rear suspension, check track tension and

adjust if necessary.

Stopper Strap

Stopper strap length has an effect on the amount of weight the center

spring has to carry especially during acceleration, therefore on the

front end uplift.

Stopper strap length also has an effect on center spring travel.

NOTICE

Whenever stopper strap length is changed, track tension must

be checked.

NOTE:

Stopper strap can be set to position 1, 2, 3 or 4. Smaller numbers cor-

respond to a longer strap setting.

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STOPPER STRAP POSITIONS

1. Position 1 (longest)

2. Position 2

3. Position 3

4. Position 4 (shortest)

When operating the snowmobile in deep snow or hill climbing, it may

be necessary to vary stopper strap length and/or riding position, to

change the angle at which the track rides on the snow. Operator's fa-

miliarity with the various adjustments as well as snow conditions will

dictate the most efficient combination.

Generally, a longer stopper strap setting gives better performance on

a flat landscape and a shorter setting will improve handling in steep hill

climbing and deep snow conditions.

Stopper Strap Setting

Position

use

Boon docking:

1

- Better bump absorption

- Lighter and easier handling on flat landscape.

2

Normal setting: Best overall setting (General use)

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Stopper Strap Setting

Position

use

Hill climb:

- Better track attack angle for hill climbing

3

- Better maneuverability on deep snow and on

sidehilling

Steep hill climb:

- Better track attack angle for hill climbing

4

- Less transfer

- Lower ride height

Center Spring

Center spring preload has an effect on steering effort, handling and

bump absorption.

Also, since center spring preload adjustment puts more or less pres-

sure on the front of the track, it has an effect on the performance in

deep snow.

Action

Result

Lighter steering

More bump absorption

capability

Increasing preload

Better deep snow starts

Better deep snow performance

and handling

Heavier steering

Less bump absorption

Decreasing preload

capability

Better trail handling

Cam Type Adjuster

Using the suspension adjustment tool provided in the tool kit, turn the

cam to increase or decrease the spring preload.

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1. Increase preload

2. Decrease preload

Ring Type Adjuster

Grab and turn the ring and the spring to increase or decrease the

spring preload.

1. Increase preload

2. Decrease preload

Rear Spring

Rear spring preload has an effect on comfort, ride height and load

compensation.

Also, adjusting rear spring preload shifts more or less weight to the

snowmobile front end. As a result, more or less weight is applied to

the skis. This has an effect on performance in deep snow, steering ef-

fort and handling.

Slight suspension bottoming occurring under the worst riding condi-

tions indicates a good choice of spring preload.

Action

Result

Increasing preload

Firmer rear suspension

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Action

Result

Higher rear end

More bump absorption capability

Heavier steering

Softer rear suspension

Lower rear end

Less bump absorption capability

Decreasing preload

Lighter steering

Better deep snow performance and

handling

Refer to the following to determine if preload is correct.

- A = Suspension fully extended

- B = Suspension has collapsed with operator, passenger(s) and

load added

- C = Distance between dimension “A” and “B”, see table below

TYPICAL - DISTANCE BETWEEN GROUND AND UPPER REAR

ARM PIVOT

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C

What to do

85 to 95 mm (3.3 to 3.7 in)

No adjustment required

More than

Adjusted too soft. Increase

95 mm (3.7 in)

preload

Less than

Adjusted too firm. Decrease

85 mm (3.3 in)

preload

NOTE:

If the specification is unattainable with the original springs, visit an au-

thorized BRP snowmobile dealer for other available springs.

For normal setting, refer to Suspension Adjustment Table.

To adjust, unscrew the locking ring, then turn the adjustment ring to

set the spring preload.

When the desired preload is set, tighten the locking ring against the

adjustment ring.

1. Adjustment ring

2. Locking ring

Center and Rear Shock Absorber Adjustments (KYB HLCR

Series Only)

Compression Dampiing

Low speed compression damping controls how the shock absorber re-

acts to a low suspension velocity (slow compression strokes, in most

cases when riding at lower speeds).

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High speed compression damping controls how the shock absorber

reacts to a high suspension velocity (quick compression strokes, in

most cases when riding at higher speeds).

1. High speed compression adjuster (hexagonal)

2. Low speed compression adjuster (slotted)

Result on big and

Turning

Action

small bumps

Increasing

Firmer compression

Clockwise

compression

damping

damping force

Decreasing

Counter

Softer compression

compression

Clockwise

damping

damping force

Rebound Damping

Rebound damping controls how the shock absorber restrains the ex-

tension stroke.

175

TUNE YOUR RIDE

1. Rebound adjuster

Result on big and

Turning

Action

small bumps

Firmer rebound

Increasing rebound

Clockwise

damping (slower

damping force

extension speed)

Softer rebound

Counter

Decreasing rebound

damping (faster

Clockwise

damping force

extension speed)

NOTE:

In repetitive short small bumps (ripple), it is recommended to use a

lower rebound damping setting.

176

MAINTENANCE SCHEDULE

E-TEC Engines

DEEP SNOW

A+

A

B

Every 2

A=Adjust

Every

Every

years

C=Clean

month

year

or

I=Inspect

or

or

6000

L=Lubricate

1500 km

3000 km

km

R=Replace

(1000

(2000

(4000

T=Torque

mi)

mi)

mi)

Air and Fuel Delivery

Fuel components (fuel

cap, hoses, clamps and

I

tank fixation) and

function*

R

In-line fuel filter

Every 5

years

Body and Chassis

Body panels and

I, T

hardware

Pivots, latches, hinges

L

and key barrels

Engine and Cooling

Engine cooling

components (coolant

concentration, coolant

I, A

level, hose condition,

clamps, leaks)*

Engine rubber mounts

I

Rewind starter (manual

C, L

start models)

R

Every 3

Spark plugs - Except

years

Turbo R

or

10 000

km

183

MAINTENANCE SCHEDULE

DEEP SNOW

A+

A

B

Every 2

A=Adjust

Every

Every

years

C=Clean

month

year

or

I=Inspect

or

or

6000

L=Lubricate

1500 km

3000 km

km

R=Replace

(1000

(2000

(4000

T=Torque

mi)

mi)

mi)

Exhaust components

(gaskets, pipes, muffler

I

condition, leaks)*

Exhaust manifold

T

Brake

Brake components and

I, L

function*

R

Brake fluid

Every 2

years

Drive

A

After the

first

75 km

(50 mi)

then

every

Chaincase drive chain

500 km

A

tension

(300 mi),

up to

then

every

1500 km

(1000

mi)

Gearbox / chaincase oil

I

level

A

Track alignment and

After the

I, A

tension

first

185

MAINTENANCE SCHEDULE

DEEP SNOW

A+

A

B

Every 2

A=Adjust

Every

Every

years

C=Clean

month

year

or

I=Inspect

or

or

6000

L=Lubricate

1500 km

3000 km

km

R=Replace

(1000

(2000

(4000

T=Torque

mi)

mi)

mi)

75 km

(50 mi)

then

every

500 km

(300 mi),

up to

then

every

1500 km

(1000

mi)

Gearbox / chaincase oil

R

Continuously Variable Transmission (CVT)

CVT components and

I, C, L

function*

CVT drive belt condition

I

CVT drive belt tension

A

A

Drive pulley retaining

T

screw

Electrical

Battery connections and

I

condition

Electrical harness

I

routing

Headlight aim

A

Modules and applicable

I

software updates

186

MAINTENANCE SCHEDULE

DEEP SNOW

A+

A

B

Every 2

A=Adjust

Every

Every

years

C=Clean

month

year

or

I=Inspect

or

or

6000

L=Lubricate

1500 km

3000 km

km

R=Replace

(1000

(2000

(4000

T=Torque

mi)

mi)

mi)

Operation of control

I

switches and lighting

Steering and Controls

Ski runners

I

Gearbox position lever

I, A

operation

Steering alignment

I, A

Steering components

I

and function*

Throttle cable

A

Throttle operation

I

Suspension

Suspension components

I, L

and function*

*For an extensive list of maintenance actions to be performed, refer to

the Maintenance Checklist.

187

MAINTENANCE PROCEDURES

TYPICAL

1. Coolant reservoir

2. COLD line

Verifying the Engine Coolant Level – Turbo Engine

1. Remove access panel.

189

MAINTENANCE PROCEDURES

2. Check coolant level at room temperature. Liquid should touch the

flat surface of the eyesight.

3. Add coolant if required.

190

MAINTENANCE PROCEDURES

NOTE:

When checking level at low temperature it may be slightly lower then

the mark.

4. Remove the following fasteners then the RH air filter.

5. Add coolant by the filler neck.

191

MAINTENANCE PROCEDURES

6. If coolant level keeps dropping during or after each ride or if entire

system has to be refilled, refer to an authorized BRP snowmobile

dealer, repair shop or person of your own choosing for servicing.

Recommended Engine Coolant

RECOMMENDED COOLANT

XPS Extended life pre-mixed coolant

IF THE RECOMMENDED XPS COOLANT IS NOT

AVAILABLE

Distilled water and antifreeze solution (50% distilled water, 50%

antifreeze)

NOTICE

Always use ethylene-glycol antifreeze containing corrosion in-

hibitors specifically for internal combustion aluminum engines.

192

MAINTENANCE PROCEDURES

TYPICAL

Brake fluid must always be above the MIN. line when brake lever is

squeezed.

TYPICAL

1. Minimum

2. Maximum

3. Operating range

194

MAINTENANCE PROCEDURES

If brake fluid level keeps dropping during or after each ride, or if en-

tire system has to be refilled, refer to an authorized BRP dealer, re-

pair shop, or a person of your own choosing for servicing.

Adding Brake Fluid

NOTICE

Vehicle must be on a level surface before checking any fluid

levels.

1. Clean the reservoir cap.

2. Remove the screws retaining the reservoir cap.

195

MAINTENANCE PROCEDURES

3. Remove the reservoir cap.

4. Add fluid as required. Do not overfill. Use only the recommended

brake fluid. Refer to Recommended Brake Fluid in this subsection.

196

MAINTENANCE PROCEDURES

CAUTION

Avoid getting brake fluid on skin or eyes - it may cause severe

burns. In case of contact with the skin, wash thoroughly. In

case of contact with the eyes, immediately rinse with plenty of

water for at least 10 minutes and then consult a doctor

immediately.

NOTICE

– Brake fluid can damage paint, rubber and plastic parts

– Protect these nearby parts with a rag when servicing the

brake system

– Rinse thoroughly in case of spillage.

5. Ensure the diaphragm is pushed in the reservoir cap before instal-

ling the cap one the reservoir.

6. Reinstall reservoir cap and screws. Tighten to specification.

Tightening Torque

0.7 ± 0.1 Nm

Reservoir cap screws

(6 ± 1 lbf-in)

197

MAINTENANCE PROCEDURES

CHECK PLUG

Oil level must reach the threaded hole.

If level is correct, reinstall check plug and tighten to the specified

torque.

Tightening Torque

Check plug

6 ± 1 Nm (53 ± 9 lbf-in)

If level is insufficient, refer to Chaincase Filling Procedure.

Replacing the Chaincase Oil

Draiining the Chaiincase Oiil

1. Place the vehicle on a level surface.

2. Place a drain pan under the chaincase drain plug area.

3. Remove filler cap.

4. Remove the drain plug located at the bottom of the chaincase.

199

MAINTENANCE PROCEDURES

5. Wait a while to allow all oil to drain out of the chaincase.

6. Install drain plug and tighten to specification.

Tightening Torque

Chaincase drain plug

6 ± 1 Nm (53 ± 9 lbf-in)

Fiillling the Chaincase

1. Open the RH side panel. Refer to Equipment.

2. Remove the check plug.

200

MAINTENANCE PROCEDURES

CHECK PLUG

3. Remove the filler cap.

TYPICAL - TOP OF CHAINCASE

1. Filler cap

4. Pour recommended oil in the filler hole until oil comes out by the

check plug hole.

5. Reinstall check plug and tighten to specification.

201

MAINTENANCE PROCEDURES

Tightening Torque

Check plug

6 ± 1 Nm (53 ± 9 lbf-in)

Reinstall the filler cap.

Drive Chaiin

Access to Chaincase

Open RH side panel, refer to Equipment.

Drive Chain Adjustment

Using the Torx end of the driven pulley expander, GENTLY turn ten-

sioner clockwise to eliminate the play.

TYPICAL

Do not force the tensioner in.

NOTE:

Do not remove the hair cotter pin.

NOTICE

Overtightening the drive chain could result in severe damage to

the chaincase components.

202

MAINTENANCE PROCEDURES

Driive Belt

Drive Belt Inspection

Remove the drive belt guard. Refer to the procedure in Equipment.

Inspect belt for cracks, fraying or abnormal wear (uneven wear, wear

on one side, missing cogs, cracked fabric). If abnormal wear is noted,

probable cause could be pulley misalignment, excessive RPM with

frozen track, fast starts without warm-up period, burred or rusty

sheave, oil on belt or distorted spare belt. Contact an authorized BRP

snowmobile dealer.

Replacing the Drive Belt

Removing the Drive Bellt

1. Remove tether cord cap from engine cut-off switch.

2. Remove drive belt guard. Refer to Equipment.

3. Insert the driven pulley expander provided in the threaded hole on

the adjuster hub as shown.

TYPICAL - PULLEY EXPANDER INSTALLED ON ADJUSTER

HUB

4. Open the driven pulley by screwing the tool in.

5. Remove the drive belt by slipping it over the top of the driven pul-

ley, then over the drive pulley.

203

MAINTENANCE PROCEDURES

Installling the Driive Bellt

1. If necessary, open the driven pulley. Refer to Removing the Drive

Belt above.

2. Slip the belt over the drive pulley, then over the driven pulley.

NOTICE

Do not force or use tools to pry the belt into place, as this could

cut or break the cords in the belt.

NOTE:

The maximum drive belt life span is obtained when belt is installed

with arrows in the direction of rotation.

1. To be pointed in the direction of rotation

3. Unscrew and remove the driven pulley expander from the pulley.

4. Rotate the driven pulley several times to properly set the belt be-

tween the sheaves.

5. If a new belt was installed, an adjustment will be required for the

proper belt height. Refer to Adjusting the Drive Belt Height below.

6. Install belt guard. Refer to Equipment.

7. Close side panel. Refer to Body and Seat.

Adjusting the Drive Belt Height

The drive belt height must be checked every time a new drive belt is

installed and as part of the pre-ride inspection.

To adjust the drive belt height, proceed as follows:

1. Remove tether cord cap from engine cut-off switch.

2. Remove drive belt guard.

3. Loosen the clamping bolt.

204

MAINTENANCE PROCEDURES

4. Using the suspension adjustment tool provided, turn the ring 1/4

turn at a time then rotate the driven pulley to properly set the drive

belt between the pulley sheaves.

205

MAINTENANCE PROCEDURES

NOTE:

The adjustment ring has left hand treads.

850 E-TEC

Repeat step 4 until the cord of drive belt is just hidden by the driven

pulley edge.

NOTE:

Turning the ring counterclockwise lowers the drive belt in the pulley.

Turning the ring clockwise raises the drive belt in the pulley.

5. Firmly tighten the clamping bolt. If possible, tighten to specification

using a torque wrench.

206

MAINTENANCE PROCEDURES

TIGHTENING TORQUE

Clamping bolt

5.5 ± 0.5 Nm (49 ± 4 lbf-in)

6. Install drive belt guard.

7. Install side panel.

NOTE:

These settings are correct as a preliminary adjustment for most mod-

els. In some cases, when starting the engine, the vehicle could creep,

indicating that the drive belt is too tight.

If the vehicle creeps, lower the drive belt height from the prelimi-

nary setting. Repeat procedure until creeping stops.

Reverse Activation

NOTE:

The reverse may not activate if the belt is positioned too high in the

driven pulley. If reverse activation does not work properly, ensure the

drive belt is properly adjusted. Adjust the drive belt lower in the driven

pulley if needed.

207

MAINTENANCE PROCEDURES

2. Locate the cam and the pivot screw on the drive pulley.

TYPICAL

1. Cam

2. Pivot screw

The cam position is identified as follows:

- Positions 1, 2, 4 and 5 are numbered.

- Position 3 (middle) is identified by a notch.

- There are notches on each side of the cam used as pointers.

209

MAINTENANCE PROCEDURES

1. Numbered position

2. Position 3 - Notch

3. Pointers

To adjust, proceed as follows for all 3 cams:

3. Using the Allen end of the driven pulley expander, loosen the pivot

screw.

210

MAINTENANCE PROCEDURES

1. Pivot screw

4. Move the right lever aside to be able to turn the cam.

5. Turn cam to the desired position.

211

MAINTENANCE PROCEDURES

1. Desired cam position (here #2)

6. Tighten the pivot screw.

TIGHTENING TORQUE

Pivot

8 ± 1 Nm (71 ± 9 lbf-in)

NOTICE

Always adjust all 3 cams to the same setting.

Track

Track Condition

WARNING

Remove tether cord cap from engine cut-off switch before per-

forming any maintenance or adjustment, unless otherwise

specified. Vehicle must be parked in a safe place, away from

the trail.

Remove tether cord cap from engine cut-off switch.

212

MAINTENANCE PROCEDURES

1. Remove tether cord cap from engine cut-off switch.

2. Lift rear of vehicle and support it off the ground.

CAUTION

Use proper lifting techniques, notably using your legs force. Do

not attempt to lift the rear of vehicle if it is above your limits.

3. Allow rear suspension to fully extend.

4. Prepare the tensiometer.

Service tool

Tensiometer (P/N 414348200)

1. Set the bottom O-ring as per the Track Deflection from the ap-

plicable vehicle in the Technical Specifications table.

1. Bottom O-ring

2. Place the upper O-ring to 0 kgf (0 lbf).

1. Upper O-ring

5. Position the tensiometer on track, halfway between front and rear

idler wheels.

214

MAINTENANCE PROCEDURES

6. Push the tensiometer downwards until bottom O-ring (deflection

set earlier) be aligned with the bottom of slider shoe.

TYPICAL

TYPICAL

1. Deflection O-ring aligned with slider shoe

7. Read load recorded by the upper O-ring on the tensiometer.

215

MAINTENANCE PROCEDURES

TYPICAL - LOAD READING

1. Upper O-ring

8. Load reading must be as per the track deflection in the Technical

Specifications.

9. If load reading is not in accordance with the specification, adjust

track tension. Refer to Track Tension Adjustment.

Adjjusting the Track Tensiion

1. Remove tether cord cap from engine cut-off switch.

2. Lift rear of vehicle and support it off the ground.

CAUTION

Use proper lifting techniques, notably using your legs force. Do

not attempt to lift the rear of vehicle if it is above your limits.

3. Loosen the rear axle nut.

4. Tighten or loosen both adjustment screws (equally) to increase or

decrease track tension.

216

MAINTENANCE PROCEDURES

1. Loosen the axle nut

2. Tighten or loosen the adjustment screws

5. If correct tension is unattainable, contact an authorized BRP snow-

mobile dealer.

6. Retighten the rear axle nut to specification.

TIGHTENING TORQUE

Rear idler wheel retaining

48 ± 6 Nm (35 ± 4 lbf-ft)

nut and screw

7. Check track alignment as described below.

Alligning the Track

WARNING

Before checking track alignment, ensure that the track is free of

all particles which could be thrown out while track is rotating.

Keep hands, tools, feet and clothing clear of track. Always lift

the snowmobile on a wide-base stand with a rear deflector pan-

el. Ensure no one is standing in close proximity to the snowmo-

bile, especially at the rear of the track. Never rotate track at

high speed.

Centrifugal force could cause debris, damaged or loose studs,

pieces of torn track, or an entire severed track to be violently

thrown backwards out of the tunnel with tremendous force.

217

MAINTENANCE PROCEDURES

1. Lift rear of vehicle and support it off the ground.

CAUTION

Use proper lifting techniques, notably by using the force of your

legs . Do not attempt to lift the rear of vehicle if it is above your

limits.

2. Start engine and accelerate slightly so that track slowly turns. This

must be done in a short period of time (15 to 20 seconds).

3. Check that the track is well centered; equal distance on both sides

between edges of track guides and slider shoes.

1

2

3

A01F05A

1. Guides

2. Slider shoes

3. Equal distance

4. To correct track alignment:

218

MAINTENANCE PROCEDURES

1. Guides

2. Slider shoes

3. Tighten on this side

1. Stop engine.

2. Remove tether cord cap from engine cut-off switch.

WARNING

Remove tether cord cap from engine cut-off switch before per-

forming any maintenance or adjustment, unless otherwise

specified. Vehicle must be parked in a safe place, away from

the trail.

3. Loosen the rear axle nut.

4. Tighten adjustment screw on side where the slider shoe is the

farthest from the track insert guides.

5. Tighten the rear axle nut.

WARNING

Properly tighten wheel retaining bolt, otherwise wheel may

come off and cause track to “lock”.

6. Restart engine and rotate track slowly to recheck alignment.

7. Tighten the rear axle nut to specified torque.

Tightening Torque

Rear axle screw

48 ± 6 Nm (35 ± 4 lbf-ft)

8. Reposition snowmobile on the ground.

219

MAINTENANCE PROCEDURES

Fuses Location

TYPICAL

Unlock fuse block from its cover.

Refer to Technical Specifications for fuse rate and configuration.

Headliights

Headlights Beam Aiming

Open the storage compartment.

Step 1. Push button

Step 2. Lift cover

Turn the adjustment screw to reach desired beam height.

221

MAINTENANCE PROCEDURES

TYPICAL

Battery

WARNING

Never charge or boost the battery while it is installed on the

vehicle.

Removing the Battery

1. Remove the seat.

2. Remove the battery cover.

222

MAINTENANCE PROCEDURES

TYPICAL

3. Disconnect the negative terminal first, then the positive terminal.

NOTICE

Battery BLACK ( – ) cable must always be disconnected first

and connected last.

4. Remove the battery hold down bracket.

223

MAINTENANCE PROCEDURES

5. Remove the battery.

Cleaning the Battery

Clean battery casing and battery posts using a soft brush and a solu-

tion of baking soda and water.

Remove corrosion from battery cable terminals and battery posts us-

ing a firm wire brush.

Rinse with clear water then dry well.

224

VEHICLE CARE

Post-Operation Care

Remove snow and ice from rear suspension, track, front suspension,

steering mechanism and skis.

WARNING

Make sure D.E.S.S. key is removed from D.E.S.S. post before

standing in front the vehicle, getting close to the track or rear

suspension components.

Always cover your snowmobile when leaving it outside overnight or

during extended periods of inactivity. This will protect it from frost and

snow as well as help retain its appearance.

Vehiiclle Clleaniing and Protection

Wash snowmobile with water mixed with a mild detergent. Use only

microfiber cloths or an equivalent.

NOTICE

Never use a high pressure washer to clean the vehicle. USE

LOW PRESSURE ONLY (EX: garden hose).

NOTICE

Never use XPS Brake and Parts Cleaner or any petroleum

based cleaners on plastic parts.

Non Compatible Cleaning Products

material type

non-compatible cleaning Products

All plastics, vinyls,

BRAKE AND PARTS CLEANER OR

painted steel and

ANY PETROLEUM BASE CLEANING

aluminium.

PRODUCTS

Compatible Cleaning Products

material type

cleaning Product

All plastics, vinyls,

Soapy water

painted steel and

XPS Spray Cleaner and Polish

aluminium.

XPS All Purpose Cleaner

226

STORAGE

Engine Storage Procedure

The engine has to be properly lubricated at storage for internal parts

protection.

E-TEC Engine - 4.5” and 7.2” Digital Display

Follow these simple steps.

To engage the procedure, do the following:

1. Place the vehicle in a well ventilated area.

2. Start the engine and let it run at idle speed until it reaches its oper-

ating temperature (watch the coolant temperature on the display or

verify the rear heat exchanger becomes warm).

3. Push the SET (S) button to select odometer mode.

TYPICAL

NOTE:

The storage mode does not function in other modes (trip A, trip B and

hr trip).

4. Repeatedly depress the HI/LOW beam switch rapidly, then, while

doing this, press and hold the SET button until PUSH "S" ap-

pears on the display.

229

STORAGE

TYPICAL

5. Release all buttons when gauge displays PUSH (S) appears.

6. Again, press and hold the SET (S) button for 2 - 3 seconds.

NOTE:

The gauge will display OIL when the storage procedure is initiated.

7. When gauge displays OIL, release button and wait for the lubrica-

tion function to end.

TYPICAL

Do not touch anything during engine lubrication cycle.

The engine lubrication function takes approximately 1 minute. Dur-

ing this time the engine RPM will increase slightly to approximately

1600 RPM and the oil pump will "oil flood" the engine.

230

STORAGE

At the end of engine lubrication procedure, the ECM will turn the

engine off.

Remove tether cord cap from engine cut-off switch.

NOTICE

Do not start the engine during storage period.

E-TEC Engine - 10.25” Color Touchscreen Display

To engage the procedure, do the following:

1. Place the vehicle in a well ventilated area near storage area.

2. Start the engine and let it run at idle speed until it reaches its oper-

ating temperature (watch the coolant temperature on the display or

verify the rear heat exchanger becomes warm).

3. Go to

”Vehicle Settings”, select

“Vehicle Health” and then

“Procedures”.

4. Press and hold on “Start Summerization” and follow the steps on

screen.

Do not touch anything during engine lubrication cycle.

The engine lubrication function takes approximately 1 minute. Dur-

ing this time the engine RPM will increase between 1500 and 2000

RPM and the oil pump will "oil flood" the engine.

At the end of engine lubrication procedure, the ECM will turn the

engine off.

Remove tether cord cap from engine cut-off switch.

NOTICE

Do not start the engine during storage period.

231

VEHICLE IDENTIFICATION

Vehiiclle Descriiptiion Decal

Vehicle description decal is located on right hand side of tunnel.

FOR NORTH AMERICAN MARKET

520002459

FOR EUROPEAN MARKET

242

VEHICLE IDENTIFICATION

Engine Identification Number Location

1. Engine identification number

244

COMPLIANCE LABELS

EPA Complliance Label

EPA COMPLIANCE LABEL

TYPICAL

245

COMPLIANCE LABELS

SSCC Labell

Safety standards for snowmobiles have been adopted by the Snow-

mobile Safety and Certification Committee (SSCC) of which BRP is a

proud participating member. Assurance that your snowmobile meets

these standards is easily checked by locating the Certification Label

on a right vertical portion of the vehicle.

The following label shows that an independent testing laboratory has

verified compliance with the SSCC safety standards.

SSCC LABEL

TYPICAL

Regullatiion (EU) 2016/1628 appllicablle for

Non-Road Mobiile Machineries

Vehicles who comply to Regulation (EU) 2016/1628 (NRMM) are iden-

tified on the engine.

246

COMPLIANCE LABELS

TYPICAL

Rotax

NRSC H CO2 g/kWh:

XXXX

#

MXXXXXXX

Prod. date:

MM-YYYY

Family type:

XXXXXX

e13

SMB/P V-####

TYPICAL - NRMM IDENTIFICATION LABEL

Depending on your particular vehicle configuration, an additional

NRMM identification label may be installed on the tunnel, near the

chaincase.

247

COMPLIANCE LABELS

TYPICAL - ON RH SIDE OF TUNNEL

NRMM IDENTIFICATION ON VEHICLE

248

NOISE EMISSION AND VIBRATION VALUES

850 E-TEC

MODEL

850 E-TEC

Turbo R

NOISE EMISSION AND VIBRATION VALUES¹

Sound

103.3 dB

99.9 dB

power level

(Uncertainty

(Uncertainty

(L_WA)

(K_wa) 3 dB)

(K_wa) 3 dB)

Noise

Sound

92 dB

87 dB

pressure

(Uncertainty

(Uncertainty

(L_pA)

(K_pA) 3 dB)

(K_pA) 3 dB)

Hand-arm

<2.5 m/s²

<2.5 m/s²

system

Vibra

tion

Whole

body at

<0.5 m/s²

<0.5 m/s²

seat

¹: Noise emission and Vibration values are measured

in accordance with Annexes A and B of ISMA 1

regulation on a snow covered or grass surface in

neutral or without belt.

249

ENGINE

850 E-TEC

ENGINE

850 E-TEC

Rotax 850 E-TEC

liquid cooled with

Engine type

reed valves and

electronic RAVE

Number of cylinder

2

Bore

82 mm (3.228 in)

Stroke

80.4 mm (3.165 in)

Displacement

849 cm³ (51.81 in³)

Maximum power engine speed

7900 ± 100 RPM

FUEL SYSTEM

E-TEC direct

injection with

Fuel delivery

integrated auxiliary

injection system

Idle speed (not adjustable)

1200 ± 200 RPM

ELECTRICAL SYSTEM

30 A @ 14.5 V

Lighting system output

1340 W @ 6000

RPM

NGK ILKR8Q7

(engine and spark

Type

plug threads are

indexed)

Spark plug

Not adjustable 0.6

Gap⁽¹⁾

to 0.7 mm (.024 to

.028 in)

262

ENGINE

LUBRICATION SYSTEM

Electronic oil

Oil injection pump type

injection pump

XPS 2T E-TEC

Type⁽²⁾

Recommended

synthetic oil

Injection oil

3.4 l (3.6

Quantity

qt(liq.,US))

850 E-TEC Turbo R

ENGINE

Rotax 850 E-TEC

turbocharged liquid

Engine type

cooled with reed

valves and

electronic RAVE

Number of cylinder

2

Bore

82 mm (3.228 in)

Stroke

80.4 mm (3.165 in)

Displacement

849 cm³ (51.81 in³)

Maximum power engine speed

7900 ± 100 RPM

FUEL SYSTEM

E-TEC direct

injection with

Fuel delivery

integrated auxiliary

injection system

Idle speed (not adjustable)

1200 ± 200 RPM

263

ENGINE

ELECTRICAL SYSTEM

30 A @ 14.5 V

Lighting system output

1340 W @ 6000

RPM

NGK ILKR8Q7

(engine and spark

Type

plug threads are

indexed)

Spark plug

Not adjustable 0.6

Gap⁽¹⁾

to 0.7 mm (.024 to

.028 in)

LUBRICATION SYSTEM

Electronic oil

Oil injection pump type

injection pump

XPS 2T E-TEC

Type⁽²⁾

Recommended

synthetic oil

Injection oil

3.4 l (3.6

Quantity

qt(liq.,US))

264

VEHICLE

SHREDDER

COOLING SYSTEM

XPS Extended life

Recommended

pre-mixed coolant

Ethyl glycol and

distilled water

Coolant type

(50%/50%)

Alternative, or if

or coolant

not available

specifically

formulated for

aluminum engines

3700 850

7.3 l (7.3

E-TEC

qt(liq.,US))

3900 850

E-TEC

7.4 l (7.8

Coolant capacity

3900 850

qt(liq.,US))

E-TEC Turbo R

7.5 l (7.9

4100 models

qt(liq.,US))

FUEL SYSTEM

In-tank electrical

Fuel pump

fuel pump

Type

Premium unleaded

gasoline (fuel which

may contain up to

10% MAX ethanol

Fuel

91 Pump Posted

Octane rating

AKI (R+M)/2)

95

(RON)

37 l (9.8

Fuel tank capacity

gal(liq.,US))

265

VEHICLE

ELECTRICAL SYSTEM

Battery (model with 10.25” display

12 V, 3 A•h

touchscreen)

Low beams

2 x 14 W

Headlamp

High beams

18.5 W

Taillight and stoplight

2 x 2.6/3.5 W LED

F1

Start/RER

5A

F2

Accessories/

25 A

Loads

Fuses

F3

Battery

30 A

F4

Cluster

15 A

DRIVE SYSTEM - CHAINCASE

Recommended

XPS Synthetic

chaincase oil

Type

75W140 gear oil

Chaincase

Alternative, or if

that meets the API

oil

not available

GL-5 specification

350 ml (12 fl

Capacity

oz(US))

RE 3700 850 E-TEC Turbo R

21/51

RE 3900 850 E-TEC

Chain drive

RE 3700 850 E-TEC

21/49

ratio

All DS 850 E-TEC

RE 3900 850 E-TEC Turbo R

21/53

All DS 850 E-TEC Turbo R

266

VEHICLE

DRIVE SYSTEM - DRIVE AND DRIVEN PULLEYS

Drive pulley type

pDrive with clickers

All 850 E-TEC

3300 ± 100 RPM

(Sea level calibration)

4100

(850 E-TEC)

3600 ± 100 RPM

Drive pulley

(High altitude calibration)

engage

ment RPM

850 E-TEC Turbo R

3400 ± 100 RPM

(Sea level calibration)

All 850 E-TEC Turbo R

3800 ± 100 RPM

(High altitude calibration)

Driven pulley type

QRS

Not adjustable

Z

20.9 mm (.823 in)

Pulley

distance

Not adjustable

X

41.1 ± 1.8 mm

(1.618 ± .071 in)

Not adjustable

New

3 mm (.118 in)

Offset

Y-X

Not adjustable

After break-in

2 ± 0.5 mm (.079 ±

.02 in)

Width

38.3 mm (1.508 in)

Drive belt

Wear limit

35.9 mm (1.413 in)

DRIVE SYSTEM - TRACK

3700

8

Drive sprocket number of

teeth

All others

6

38.1 cm x 370.5 cm

Track dimension (Width

x 63.5 cm

3700

x Length x Profile Height)

(15 in x 146 in x 2.5

in)

267

VEHICLE

DRIVE SYSTEM - TRACK

38.1 cm x 392 cm x

63.5 cm

(15 in x 154 in x 2.5

in)

3900

38.1 cm x 392 cm x

76.2 cm

(15 in x 154 in x 3

in)

38.1 cm x 419 cm x

63.5 cm

(15 in x 165 in x 2.5

in)

4100

38.1 cm x 419 cm x

76.2 cm

(15 in x 165 in x 3

in)

Deflection

32 mm (1.26 in)

Track

adjust

6.0 to 8.5 kgf (13 to

ment⁽³⁾

Force

19 lbf)

BRAKE SYSTEM

Single 200 mm

Brake

Type

cross drilled carbon

steel disc

Type

DOT 4

Brake fluid

65 ml (2.2 fl

Quantity

oz(US))

Fixed twin pistons

Caliper

(2 x 40mm)

Brake pad material

Organic

Minimum brake pad thickness (includes

5 mm (0.197 in)

backing plate)

268

VEHICLE

BRAKE SYSTEM

Minimum brake disc thickness

4.5 mm (0.177 in)

Maximum brake disc warpage

0.25 mm (0.01 in)

FRONT SUSPENSION

Suspension type

LFS

DS

215 mm (8.5 in)

Suspension maximum

travel

RE

207 mm (8.2 in)

DS

KYB 36 Kashima

Shock absorber type

KYB 36 CR

RE

Kashima

Stabilizer bar type

Link

REAR SUSPENSION

Suspension type

PPS2-DS+

Suspension maximum travel

264 mm (10.4 in)

DS

KYB 36 Kashima

Center

RE

KYB 46 Kashima

Shock

absorber

DS

KYB 36 Kashima

type

Rear

KYB 46 HLCR

RE

Kashima

WEIGHT AND DIMENSIONS

DS 3900 (2.5") 850

E-TEC

206 kg (454 lb)

DS 3900 (3") 850 E-TEC

206.8 kg (456 lb)

Mass (dry)

DS 3900 (3") 850 E-TEC

216 kg (476 lb)

Turbo R

269

VEHICLE

WEIGHT AND DIMENSIONS

DS 4100 (3") 850 E-TEC

218 kg (481 lb)

Turbo R

RE 3700 850 E-TEC

214 kg (472 lb)

RE 3900 850 E-TEC Turbo R

225 kg (496 lb)

DS 3900

325 cm (128 in)

DS 4100

338 cm (133 in)

Overall

length

RE 3700

312 cm (122.8 in)

RE 3900

325 cm (124 in)

Overall width

112 cm (44 in)

Overall height

128 cm (50.4 in)

Ski stance

92,1 cm (36 in)

(1)

Do not attempt to adjust gap on this spark

NOTICE

plug.

(2)

Refer to INJECTION OIL for detailed information.

(3)

Refer to Track Tension Verification in Maintenance

Procedures for detailed procedure.

270

MONITORING SYSTEM

Piilot Lamps, Messages and Beeper Codes

Gauge pilot lamp(s) will inform you if an anomaly occurs or to inform

you of a particular condition.

PILOT LAMPS – 4.5” DIGITAL DISPLAY

DIGITAL PILOT LAMP

–

10.25” COLOR DIGITAL

TOUCHSCREEN

PILOT LAMPS – 10.25” COLOR DIGITAL TOUCHSCREEN

Pilot lamp can flash alone or in combination with another lamp.

Notifications will appear on the top right corner of the screen as a com-

plement of the pilot lamps to give you a brief description if an anomaly

occurs or to inform you of a particular condition.

4.5" DIGITAL LOWER DISPLAY

275

MONITORING SYSTEM

10.25” COLOR DIGITAL TOUCHSCREEN

Messages will be displayed with a beep code and pilot lamp(s).

Beeper codes will be heard, and messages will be displayed to catch

your attention.

See table below for details.

NOTE:

Some of the listed pilot lamps and messages do not apply to all

models.

Pilot

Message

lamp

BEEPER

Description

Display

ON

Engine is overheating,

reduce

snowmobile

speed and run in loose

snow or stop engine

immediately and let

engine cool down.

4 short

HIGH

beeps

Check coolant level,

ENGINE

refer to Maintenance. If

every 30

TEMPERA

coolant level is correct

seconds

TURE

and

overheating

persists, contact an

authorized

BRP

snowmobile dealer. Do

not run the engine if

condition persists.

276

MONITORING SYSTEM

Pilot

Message

lamp

BEEPER

Description

Display

ON

Reduce speed or stop

engine. Let engine cool

down and restart. If

overheating

persists,

MUFFLER

contact an authorized

OVERHEAT

BRP

snowmobile

dealer. Do not run the

engine if

condition

persists.

Critical overheat. Stop

engine immediately and

let engine cool down.

Check coolant level,

HIGH

refer to Maintenance. If

ENGINE

coolant level is correct

TEMPERA

and

overheating

TURE

persists, contact an

authorized

BRP

Short

snowmobile dealer. Do

beeps

not run the engine if

repeating

condition persists.

rapidly

MUFFLER

Critical overheat. Stop

OVERHEAT

engine immediately and

let engine cool down. If

overheating

persists,

contact an authorized

ECM

BRP

snowmobile

OVERHEAT

dealer. Do not run the

engine if

condition

persists.

Indicate a low or high

4 short

battery

voltage

beeps

condition.

Visit

an

BATT VOLT

every 5

authorized

BRP

minutes

snowmobile dealer as

soon as possible.

277

MONITORING SYSTEM

Pilot

Message

lamp

BEEPER

Description

Display

ON

Engine fault, see an

authorized

BRP

4 short

CHECK

snowmobile

dealer,

beeps

ENGINE

repair shop or person of

your own choosing as

soon as possible.

Displayed when brake

is applied for more than

15 seconds while

—

—

throttle lever is

squeezed and vehicle is

moving at more than 5

km/h (3 mph).

Engine detonation

(RPM is limited when

this condition occurs).

- Ensure

recommended fuel is

used.

4 short

- Check fuel quality,

beeps

replace if

—

KNOCK

every 5

necessary.

minutes

- If fault still occurs,

contact an

authorized BRP

snowmobile dealer,

repair shop, or

person of your own

choosing.

4 short

Engine RPM limited for

beeps

—

REV LIMIT

protection when certain

every 5

faults occur.

minutes

Indicates that maximum

engine RPM is reached.

—

—

OVER REV

Check

clutch

calibration.

278

MONITORING SYSTEM

Pilot

Message

lamp

BEEPER

Description

Display

ON

2 short

Good key, vehicle ready

—

beeps

to operate.

Unable to read key (bad

Short

connection). Make sure

beeps,

WRONG KEY

the key is clean and

repeating

correctly snapped on

DESS

slowly

post.

Invalid key or key not

Short

programmed. Use the

beeps

BAD KEY

proper key for the

repeating

vehicle or have the

rapidly

programmed.

Fuel

level

sensor

—

—

problem.

(blin-

king)

Fault Codes

The fault codes can be displayed on the center display.

The fault codes are accessible in the setting menu.

Contact an authorized BRP snowmobile dealer for code signification.

280