Polaris 2007 Two Stroke User manual

2007 TWO STROKE SNOWMOBILE
SERVICE MANUAL
FOREWORD
This service manual is designed primarily for use by certified Polaris Master Service Dealer technicians in a properly
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
proceduresinordertoperformtheworksafelyandcorrectly. Techniciansshouldreadthetextandbefamiliarwithservice
procedures before starting the work. Certain procedures require the use of special tools. Use only the proper tools as
specified.
Comments or suggestions about this manual may mailed to: Service Publications Dept. @ Polaris Sales Inc. 2100 Hwy
55 Medina Minnesota 55340.
You may also fill out a Comments and suggestion electronic form that can be located at www.polarisdealers.com in
theNews,Forms&LinksareaclickonService&Warrantylinkandthefeedbacklinkisatthebottomofthepagenamed
Polaris Manual Correction Feedback link.
2007 Two Stroke Snowmobile Service Manual PN 9920463
© Copyright 2006 Polaris Sales Inc. All information contained within this publication is based on the latest product information at the time of publication. Due to constant
improvements in the design and quality of production components, some minor discrepancies may result between the actual vehicle and the information presented in this
publication. Depictions and/orprocedures in this publication are intended for reference use only. No liability canbe accepted for omissions or inaccuracies. Any reprinting
or reuse of the depictions and/or procedures contained within, whether whole or in part, is expressly prohibited. Printed in U.S.A.

UNDERSTANDING MANUAL SAFETY LABELS AND DIRECTIONS
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.
MEASUREMENT provides a key for a determined measurement specification.
TORQUE provides a key for a required torque value.
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
M-10, Registerd Trademark of FAST, Inc
Some Polaris factory publications can be downloaded from www.polarisindustires.com, purchased from www.purepolaris.com or
by contacting the nearest Polaris dealer.
WARNING
CAUTION
CAUTION
= In. / mm.
= T

1
2
12
11
10
4
3
5
6
7
9
8
SPECIFICATIONS
GENERAL
MAINTENANCE
FUEL DELIVERY
ENGINE
CLUTCHING
FINAL DRIVE
FRONT SUSPENSION
REAR SUSPENSION
CHASSIS/HOOD
ELECTRICAL
ENGINE AND DRIVE TRAINCHASSIS AND ELECTRICAL

MODEL SPECIFICATIONS
1.1
CHAPTER 1
MODEL SPECIFICATIONS 1
340 LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
340 TOURING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4
WIDETRAK LX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6
500 XC SP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8
SUPER SPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.10
550 LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.12
TRAIL RMK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.14
TRAIL TOURING DELUXE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.16
600 HO IQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.18
600 HO IQ CLEANFIRE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.20
600 HO IQ LX CLEANFIRE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.22
600 HO SWITCHBACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.24
600 HO SWITCHBACK CLEANFIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.26
600 HO RMK 144/155 (F/O) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.28
600 HO IQ TOURING CLEANFIRE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.30
DRAGON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.32
DRAGON RMK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.34

1.2
MODEL SPECIFICATIONS
340 LX
MODEL S07ND3AS
Body
Body Style EDGE
Engine
Engine type Fuji
Engine displacement 339cc
Bore (in/mm) 2.45/62.3
Stroke (in/mm) 2.19/55.6
Piston to cylinder clearance (in/mm) .003-.005/.080-.130
Piston ring end gap (in/mm) .008-.014/.20-.41
Operating RPM±200 7000
Idle RPM±200 1600
Clutch engagement RPM ±200 4100
Fuel Delivery
Type VM30SS
Main Jet 170
Pilot Jet 35
Jet Needle/Clip position 5DP13/3
Needle Jet O-6 (169)
Throttle gap under cutaway (in/mm) .240/6.1
Throttle slide cutaway 2.5AL
Valve seat 1.5Viton
Starter jet 1.5
Pilot air jet 2.5
Fuel screw setting N/A
Air screw setting 1.5
Recommended fuel octane (R+M/2) 87 NonOxy Minimum
Jetting
Altitude
meters (feet)
Ambient Temperature
< -25°F/<-35°C
-30°F to -10°F/-34°C to -23°C
-15°F to +5°F/-26°C to -15°C
0°F to +20°F/-18°C to -7°C
+15°F to +35°F/-9°C to +2°C
+30°F to +50°F/-1°C to +10°C
+45°F to +65°F/+7°C to +18°C
>+60°F/>+16°C
0-600
(0-2000) 185 #4 180 #3 170 #3 170 #3 165 #3 160 #3 155 #3 150 #3
600-1200
(2000-4000) 175 #3 170 #3 160 #3 160 #3 155 #3 150 #3 140 #2 140 #2
1200-1800
(4000-6000) 165 #3 160 #3 155 #3 150 #3 145# 3140 #2 130 #2 130 #2
1800-2400
(6000-8000) 155 #3 150 #3 140 #3 135 #3 135 #2 130 #2 120 #1 120 #1
2400-3000
(8000-10000) 145 #3 140 #3 130 #2 130 #2 125 #2 120 #1 110 #1 110 #1
3000-3700
(10000-12000) 135 #3 130 #2 120 #2 115 #2 115 #1 110 #1 100 #1 100
#1
Clutching
Altitude meters
(feet)
Drive Clutch (P-85) Driven Clutch (TEAM)
Shift
Weight Clutch Spring Clutch Spring Driven Helix Gearing
0-900
(0-3000) 10 110/290
(Black-
2287)
Red/
Black S36 LW ER 16:41-72
900-1800
(3000-6000) 10-M Blue
110/290
(Black-
2287)
Red/
Black S36 LW ER 16:41-72
1800-2700 (6000-
9000) 10MW 110/290
(Black-
2287)
Red/
Black S36 LW ER 16:41-72
2700-3700 (9000-
12000) 10MR 110/290
(Black-
2287)
Red/
Black S36 LW ER 16:41-72
Drive clutch bolt torque 50 ft-lbs (69 N-m)
Belt
Belt part number 3211078
Belt width (in/cm) 1.438/3.65
Belt side angle 28°
Outside diameter (in/cm) 46.625/118.4
Clutch center distance (in/cm) 11.5/29.2
Chaincase
Center distance (in/cm) 7.92/20.1
Reverse type PERC

1.3
MODEL SPECIFICATIONS
1
Fluids and Capacities
Fuel (gal/l) 11.8/44.7
Oil (qts/l) 3.25/3.1
Coolant (qts/l) N/A
Chaincase (oz/ml) 9/266.2
Brake fluid type DOT4
Track
Width (in/cm) 15/38
Length (in/cm) 121/307
Lug height (in/cm) .66/1.7
Manufacture Camoplast
Track tension sag (in/cm) with 10 lbs/
4.54kg placed 16 in/40.6cm ahead of
rear idler shaft .375-.5/1-1.3
Front Suspension
Suspension type Edge LX
IFS shocks Arvin/7041932
IFS Spring PN 7041551
IFS Spring Pre-Load (in/mm) .625/15.9
IFS spring rate (lb/in - kg/mm) 100/1.79
IFS Spring free length (in/cm) 10.75/27.3
Front vertical travel (in/cm) 10/25.4
Ski center distance (in/cm) 42.5/108
Camber (in/mm) .59±.31/15.0±7.9
Toe (in/mm) .12-.25/3.0-6.35
Rear Suspension
Suspension type Edge 121
Front track shock (FTS) Arvin/7041939
FTS Spring PN 7041253
FTS Spring Free Length (in/cm) 7.5/19
FTS Spring Rate (lb/in - kg/mm) 200-240/3.6-4.3
FTS pre-load Fixed
Rear track shock Arvin MPV/7043239
Rear travel (in/cm) 13.9/35.3
Torsion Spring
Torsion spring PNs (LH/RH) 7041629/7041630
Torsion spring diameter (in/mm) .359/9.12
Torsion spring tail angle 77°
Dimensions
Width (in/cm) 48/122
Length (in/cm) 113/287
Height (in/cm) 46/117
Est dry weight (lb/kg) 457/207.7
Electrical
Ignition timing 26.5°@3000RPM
Spark plug gap (in/mm) .0275/.70
Spark plug NGK BR8ES
Voltage regulator/output 240watt
CDI marking CU7245
Flywheel Markings FP9313
Features
Electric Fuel Gauge Accessory
Electric Start Standard
Low Oil Light Standard
Parking Brake Standard
Speedometer Standard 5 inch
Tachometer Accessory

1.4
MODEL SPECIFICATIONS
340 TOURING
MODEL S07NT3A(E,S)
Body
Body Style EDGE
Engine
Engine type Fuji
Engine displacement 339cc
Bore (in/mm) 2.45/62.3
Stroke (in/mm) 2.19/55.6
Piston to cylinder clearance (in/mm) .003-.005/.080-.130
Piston ring end gap (in/mm) .008-.014/.20-.41
Operating RPM±200 7000
Idle RPM±200 1600
Clutch engagement RPM ±200 3700
Fuel Delivery
Type VM30SS
Main Jet 170
Pilot Jet 35
Jet Needle/Clip position 5DP13/3
Needle Jet O-6(169)
Throttle gap under cutaway (in/mm) .240/6.1
Throttle slide cutaway 2.5AL
Valve seat 1.5 Viton
Starter jet 1.5
Pilot air jet 2.5
Fuel screw setting N/A
Air screw setting 1.5
Recommended fuel octane (R+M/2) 87 non Oxy/Minimum
Jetting
Altitude
meters (feet)
Ambient Temperature
< -25°F/<-35°C
-30°F to -10°F/-34°C to -23°C
-15°F to +5°F/-26°C to -15°C
0°F to +20°F/-18°C to -7°C
+15°F to +35°F/-9°C to +2°C
+30°F to +50°F/-1°C to +10°C
+45°F to +65°F/+7°C to +18°C
>+60°F/>+16°C
0-600
(0-2000) 185 #4 180 #3 170 #3 170 #3 165 #3 160 #3 155 #3 150 #3
600-1200
(2000-4000) 175 #3 170 #3 160 #3 160 #3 155 #3 150 #3 140 #2 140 #2
1200-1800 (4000-
6000) 165 #3 160 #3 155 #3 150 #3 145 #3 140 #2 130 #2 130 #2
1800-2400 (6000-
8000) 155 #3 150 #3 140 #3 135 #3 135 #2 130 #2 120 #1 120 #1
2400-3000
(8000-10000) 145 #3 140 #3 130 #2 130 #2 125 #2 120 #1 110 #1 110 #1
3000-3700
(10000-12000) 135 #3 130 #2 120 #2 115 #2 115 #1 110 #1 100 #1 100
#1
Clutching
Altitude meters
(feet)
Drive Clutch (P-85) Driven Clutch (TEAM)
Shift
Weight Clutch Spring Clutch Spring Driven Helix Gearing
0-900
(0-3000) 10 (110/290)
Black-
2287
Blue/
Black 54/38-25 LW ER 17:41-72
900-1800
(3000-6000) 10-M Blue
(110-290)
Black-
2287
Blue/
Black 54/38-25 LW ER 17:41-72
1800-2700 (6000-
9000) 10 MW (110-290)
Black-
2287
Blue/
Black 54/38-25 LW ER 17:41-72
2700-3700 (9000-
12000) 10 MR (110-290)
Black-
2287
Blue/
Black 54/38-25 LW ER 17:41-72
Drive clutch bolt torque 50 ft-lbs(69 N-m)
Belt
Belt part number 3211078
Belt width (in/cm) 1.438/3.65
Belt side angle 28°
Outside diameter (in/cm) 46.625/118.4
Clutch center distance (in/cm) 11.5/29.2
Chaincase
Center distance (in/cm) 7.92/20.1
Reverse type PERC

1.5
MODEL SPECIFICATIONS
1
Fluids and Capacities
Fuel (gal/l) 12.25/46.4
Oil (qts/l) 3.25/3.1
Coolant (qts/l) N/A
Chaincase (oz/ml) 9/266.2
Brake fluid type DOT 4
Track
Width (in/cm) 15/38
Length (in/cm) 136/345
Lug height (in/cm) 1/2.5
Manufacture Soucy
Track tension sag (in/cm) with 10 lbs/
4.54kg placed 16 in/40.6cm ahead of
rear idler shaft 1.125 - 1.375 / 2.9 - 3.5
Front Suspension
Suspension type Edge LX
IFS shocks Arvin/7041932
IFS Spring PN 7041551
IFS Spring Pre-Load (in/mm) .625/15.9
IFS spring rate (lb/in - kg/mm) 100/1.79
IFS Spring free length (in/cm) 10.75/27.3
Front vertical travel (in/cm) 10/25.4
Ski center distance (in/cm) 42.5/108
Camber (in/mm) .59±.31/15.0±7.9
Toe (in/mm) .12-.25/3.0-6.35
Rear Suspension
Suspension type Edge 136
Front track shock (FTS) Arvin/7041939
FTS spring rate (lb/in - kg/mm) 200-240/3.6-4.3
FTS spring installed length (in/cm) Fixed
Rear track shock Arvin/7042138
Rear travel (in/cm) 13.9/35.3
Torsion Spring
Torsion spring PNs
(LH/RH) 7041940/7041941
Torsion spring diameter (in/mm) .405/10.3
Torsion spring tail angle 77°
Dimensions
Width (in/cm) 47.25/120
Length (in/cm) 128/325.1
Height (in/cm) 49.5/125.7
Est dry weight lb/kg 517/234.7
Electrical
Ignition timing 26.5°@3000RPM
Spark plug gap (in/mm) .028/.70
Spark plug NGK BR8ES
Voltage regulator/output 240watt
CDI marking CU7245
Flywheel Marking FP9319
Features
Electric Fuel Gauge Accessory
Electric Start Standard
Low Oil Light Standard
Parking Brake Standard
Speedometer Standard 5 inch
Tachometer Accessory

1.6
MODEL SPECIFICATIONS
WIDETRAK LX
MODEL S07SU4BS
Body
Body Style GENII
Engine
Engine type Fuji
Engine displacement 488cc
Engine model number EC50PL237
Bore (in/mm) 2.83/72
Stroke (in/mm) 2.36/60
Piston to cylinder clearance (in/mm) .0035-.0049/.090-.125
Piston ring end gap (in/mm) .0070-.016/.20-.47
Operating RPM±200 7000
Idle RPM±200 1600
Clutch engagement RPM ±200 3800
Fuel Delivery
Type VM34SS
Main Jet 195
Pilot Jet 35
Jet Needle/Clip position 6EJ26/2
Needle Jet P-6 (166)
Throttle gap under cutaway (in/mm) .240/6.1
Throttle slide cutaway 3
Valve seat 1.5 Viton
Starter jet 1.5
Pilot air jet N/A
Fuel screw setting N/A
Air screw setting .5
Recommended fuel octane (R+M/2) 87 NonOxy/Minimum
Jetting
Altitude
meters (feet)
Ambient Temperature
< -25°F/<-35°C
-30°F to -10°F/-34°C to -23°C
-15°F to +5°F/-26°C to -15°C
0°F to +20°F/-18°C to -7°C
+15°F to +35°F/-9°C to +2°C
+30°F to +50°F/-1°C to +10°C
+45°F to +65°F/+7°C to +18°C
>+60°F/>+16°C
0-600
(0-2000) 210
#2 200 #2 195 #2 190 #2 185 #2 175 #2 170 #2 170 #1
600-1200
(2000-4000) 195
#2 185 #2 180 #2 175 #2 170 #2 165 #2 155 #1 155 #1
1200-1800
(4000-6000) 185
#2 175 #2 170 #2 165 #2 160 #1 155 #1 145 #1 145 #1
1800-2400
(6000-8000) 170
#2 165 #2 155 #2 155 #1 150 #1 140 #1 135 #1 135 #1
2400-3000
(8000-10000) 160
#2 155 #2 145 #1 145 #1 140 #1 130 #1 120 #1 120 #1
3000-3700
(10000-12000) 150
#2 140 #1 135 #1 130 #1 125 #1 120 #1 110 #1 110 #1
When using non oxygenated fuel with an octane number
greater than 93, decrease the main jet number in the above
chart by 5
Clutching
Altitude meters
(feet)
Drive Clutch (P-85) Driven Clutch (P-85)
Shift
Weight Clutch Spring Clutch Spring Driven Helix Gearing
0-900
(0-3000) 10 Brown Silver 36D #2 19:41-66
900-1800
(3000-6000) 10 Red/
White Silver 36D #2 19:41-66
1800-2700
(6000-9000) 10-M Blue Red/ White Silver 36D #2 19:41-66
2700-3700
(9000-12000) 10 MW Red/ White Silver 36D #2 19:41-66
Drive clutch bolt torque 50 ft-lbs (69 N-m)
Belt
Belt part number 3211070
Belt width (in/cm) 1.375/3.49
Belt side angle 28°
Outside diameter (in/cm) 47.25/120
Clutch center distance (in/cm) 12/30.5
Chaincase
Center distance (in/cm) N/A
Reverse type Hi/Low/Reverse