Snowmobile Polaris EDGE / WIDETRAK (2007-2012 year). Manual - part 61

10.4

Battery and Electrical Systems

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

Specific Gravity Test (Conventional Battery)

NOTE: Do not attempt to open the vent cover on a
fresh pack battery.

A battery hydrometer (PN 2870836) can be used to
measure electrolyte strength or specific gravity. As the
battery goes through the charge/discharge cycle, the
electrolyte goes from a heavy, more acidic state at full
charge to a light, more water state when discharged. The
hydrometer can measure state of charge and differences
between cells in a multi-cell battery. Readings of 1.270 or
greater should be observed in a fully charged battery.
Differences of more than 0.025 between the lowest and
highest cell readings indicate a need to replace the
battery.

Battery Conductance Analyzer

Conductance describes the ability of a battery to conduct
current. A conductance tester functions by sending a low
frequency AC signal through the battery and a portion of
the current response is captured, from this output a
conductance measurement is calculated. Conductance
testing is more accurate than voltage, specific gravity, or
load testing.

Authorized Polaris dealers/distributors are required to use
the conductance analyzer when testing 12V Polaris
batteries.

Battery Voltage

STATE OF CHARGE

CONVENTIONAL

LEAD-ACID

YUMACRON TYPE

100%
CHARGED

12.60v

12.70v

75%
CHARGED

12.40v

12.50v

50%
CHARGED

12.10v

12.20v

25%
CHARGED

11.90v

12.00v

0% CHARGED

< 11.80v

< 11.90v

Battery Voltage Per Cell

STATE OF CHARGE

CONVENTIONAL

LEAD-ACID

YUMACRON TYPE

100%
CHARGED

1.265v

1.275v

75%
CHARGED

1.210v

1.225v

50%
CHARGED

1.160v

1.175v

25%
CHARGED

1.120v

1.135v

0% CHARGED

< 1.100v

< 1.115v

Polaris MDX-610P

SPX PN: PU-50296

10.5

Battery and Electrical Systems

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

Off Season Storage

To prevent battery damage during extended periods of
non-use, the following maintenance items must be
performed.

Remove battery from machine and wash the case and
battery tray with a mild solution of baking soda and
water. Rinse with of fresh water after cleaning.

Using a wire brush or knife, remove any corrosion
from the cables and terminals.

Charge at a rate no greater than 1/10 of the battery's
amp/hr. capacity.

Store the battery in a cool, dry place.

NOTE: Stored batteries lose their charge at the rate of
1% per day. They should be fully recharged every 30
to 60 days during a non-use period. If stored during
winter months, the electrolyte will freeze at higher
temperatures as the battery discharges.

CAUTION

NOT

ALLOW

ANY

THE

BAKING

SODA

SOLUTION

ENTER

THE

BATTERY

THE

ACID

WILL

NEUTRALIZED

Specific Gravity Freezing Point

Specific Gravity of

Electrolyte

Freezing Point

1.265

-75_F (-59_C)

1.225

-35_F (-37_C)

1.200

-17_F (-27_C)

1.150

5_F (-15_C)

1.100

18_F (-8_C)

1.050

27_F (-3_C)

10.6

Battery and Electrical Systems

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

IGNITION TIMING

Timing Procedure - Carbureted Engines

NOTE: Always verify timing of engine at room
temperature (68°F / 20°C), and at the specified RPM.

If applicable, verify the key switch is set to PREMIUM
and the TPS is disconnected.

Reference the timing specification chart.

Install a dial indicator gauge into the MAG spark plug
hole.

Place the MAG piston in the proper timing position,
then mark the flywheel at this point.

NOTE: Each 10 degree mark is separated by lines
every 2 degrees (not shown). Acceptable timing
variance is +/- 2 degrees.

Connect an accurate tachometer and a good quality
timing light to the engine according to manufacturer's
instructions.

Disconnect the throttle position sensor (TPS), if
equipped.

Start engine and increase RPM to the point specified
in the timing specifications. Hold the throttle to
maintain specified timing RPM.

Point the timing light at the timing inspection hole.

With your head positioned so there is a straight line
between your eye, the stationary pointer and the
crankshaft center line, note the relative position
between the marked flywheel line and the pointer. If
the stationary pointer is aligned with the mark made
in Step 3, or within the acceptable variance, ignition
timing is correct.

If the pointer is outside the variance, the stator will
have to be rotated either with crankshaft rotation (to
retard the timing) or against rotation to advance it.

NOTE: Rotate stator plate approximately the same
distance as the marks must move. In most cases, the
recoil starter housing, recoil drive hub, and flywheel
must be removed to loosen the stator bolts and
change the timing. On some engines, the stator plate
retaining screws can be accessed through the
flywheel.

10. Torque stator plate screws and flywheel nut to

specified torque. Apply Loctite 262 (red) to crankshaft
flywheel taper if required. Refer to the Specifications
section for torque specifications and flywheel
installation procedure for engine type.

Flywheel
Rotation

10.7

Battery and Electrical Systems

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

Ignition Timing Chart

Convert the ignition timing specification from degrees
BTDC to either inches or millimeters, then use a dial
indicator to verify timing marks.

EH122

EC34-2PM

EC50PL

EC55PM

S3303-5044-PF5C

ROD/
STROKE
(mm)

73mm ROD
43mm STROKE

103mm ROD
55.6mm STROKE

112mm ROD
60mm STROKE

120mm ROD65mm
STROKE

128mm ROD
64mm STROKE

Degrees
BTDC

inches

0.0042

0.0002

0.0054

0.0002

0.0058

0.0002

0.0063

0.0002

0.0061

0.0002

0.0170

0.0007

0.0215

0.0008

0.0232

0.0009

0.0252

0.0010

0.0244

0.0010

0.0381

0.0015

0.0484

0.0019

0.0521

0.0021

0.0566

0.0022

0.0548

0.0022

0.0678

0.0027

0.0860

0.0034

0.0926

0.0036

0.1006

0.0040

0.0974

0.0038

0.1059

0.0042

0.1343

0.0053

0.1447

0.0057

0.1571

0.0062

0.1522

0.0060

0.1524

0.0060

0.1933

0.0076

0.2083

0.0082

0.2261

0.0089

0.2190

0.0086

0.2073

0.0082

0.2630

0.0104

0.2833

0.0112

0.3076

0.0121

0.2979

0.0117

0.2706

0.0107

0.3432

0.0135

0.3698

0.0146

0.4016

0.0158

0.3889

0.0153

0.3422

0.0135

0.4341

0.0171

0.4677

0.0184

0.5079

0.0200

0.4919

0.0194

0.4222

0.0166

0.5355

0.0211

0.5770

0.0227

0.6265

0.0247

0.6068

0.0239

0.5104

0.0201

0.6474

0.0255

0.6976

0.0275

0.7575

0.0298

0.7336

0.0289

0.6068

0.0239

0.7698

0.0303

0.8294

0.0327

0.9006

0.0355

0.8723

0.0343

0.7114

0.0280

0.9025

0.0355

0.9724

0.0383

1.0559

0.0416

1.0227

0.0403

0.8242

0.0324

1.0456

0.0412

1.1265

0.0444

1.2232

0.0482

1.1849

0.0466

0.9450

0.0372

1.1989

0.0472

1.2917

0.0509

1.4026

0.0552

1.3586

0.0535

1.0738

0.0423

1.3624

0.0536

1.4678

0.0578

1.5938

0.0628

1.5439

0.0608

1.2106

0.0477

1.5359

0.0605

1.6548

0.0652

1.7969

0.0707

1.7406

0.0685

1.3552

0.0534

1.7195

0.0677

1.8526

0.0729

2.0117

0.0792

1.9487

0.0767

1.5077

0.0594

1.9130

0.0753

2.0611

0.0811

2.2380

0.0881

2.1681

0.0854

1.6679

0.0657

2.1163

0.0833

2.2802

0.0898

2.4759

0.0975

2.3986

0.0944

1.8358

0.0723

2.3294

0.0917

2.5098

0.0988

2.7252

0.1073

2.6402

0.1039

2.0112

0.0792

2.5521

0.1005

2.7497

0.1083

2.9857

0.1175

2.8927

0.1139

2.1941

0.0864

2.7843

0.1096

3.0000

0.1181

3.2574

0.1282

3.1560

0.1243

2.3844

0.0939

3.0260

0.1191

3.2603

0.1284

3.5401

0.1394

3.4300

0.1350

2.5821

0.1017

3.2769

0.1290

3.5307

0.1390

3.8336

0.1509

3.7146

0.1462

2.7869

0.1097

3.5370

0.1393

3.8110

0.1500

4.1379

0.1629

4.0096

0.1579

2.9989

0.1181

3.8062

0.1499

4.1010

0.1615

4.4528

0.1753

4.3149

0.1699

3.2178

0.1267

4.0843

0.1608

4.4007

0.1733

4.7782

0.1881

4.6303

0.1823

3.4437

0.1356

4.3712

0.1721

4.7098

0.1854

5.1138

0.2013

4.9558

0.1951

3.6763

0.1447

4.6667

0.1837

5.0282

0.1980

5.4595

0.2149

5.2911

0.2083

3.9156

0.1542

4.9708

0.1957

5.3559

0.2109

5.8152

0.2289

5.6361

0.2219

4.1615

0.1638

5.2832

0.2080

5.6926

0.2241

6.1807

0.2433

5.9907

0.2359

4.4139

0.1738

5.6039

0.2206

6.0381

0.2377

6.5559

0.2581

6.3546

0.2502

4.6725

0.1840

5.9326

0.2336

6.3924

0.2517

6.9405

0.2732

6.7278

0.2649

4.9374

0.1944

6.2693

0.2468

6.7552

0.2660

7.3343

0.2888

7.1099

0.2799

5.2083

0.2051

6.6138

0.2604

7.1263

0.2806

7.7372

0.3046

7.5010

0.2953

5.4852

0.2160

6.9658

0.2742

7.5057

0.2955

8.1491

0.3208

7.9007

0.3111

5.7679

0.2271

7.3253

0.2884

7.8931

0.3108

8.5696

0.3374

8.3089

0.3271

6.0562

0.2384

7.6920

0.3028

8.2883

0.3263

8.9986

0.3543

8.7254

0.3435

6.3501

0.2500

8.0659

0.3176

8.6912

0.3422

9.4360

0.3715

9.1501

0.3602

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