2007 Widetrak Lx - Polaris 340 LX 2007 Service Manual

Model Specifications

2007 Widetrak LX

Model Numbers: S07SU4BS / S07SU4BE
Engine
Engine Type
Model Number
Displacement / # Cylinders
Bore (inches/mm)
Stroke (inches/mm)
Piston to Cylinder
Clearance (inches/mm)
Installed Ring Gap
(inches / mm)
Operating RPM ±200
Idle RPM ±200
Engagement RPM ±200
Carburetor Settings
Type
Main Jet
Pilot Jet
Jet Needle/Clip position
Needle Jet
Throttle Gap (Under Cutaway)
(in/mm)
Drill Bit Size
Cutaway
Valve Seat
Starter Jet
Pilot Air Jet
Air Screw (Turns Out)
Fuel Octane (R+M/2)
(Minimum)
(Recommended)
1.12
Fuji Liquid-Cooled / Piston
Port Induction
EC50PL237
488cc / 2
2.83 / 72
2.36 / 60
.0035 - .0049 / .090 - .125
.0078 - .0157 / .20 - .40
7000
1600
3800
Mikuni VM34SS
195
35
6EJ26 / 2
P-6 (166)
.240 / 6.1
B - 15/64
3.0
1.5 Viton
1.5
2.5
.5
87 Non-Oxygenated
89 Oxygenated
9923396 - 2007-2012 EDGE/Widetrak LX Service Manual
©2011 Polaris Sales Inc.
Carburetor Jetting
Altitude
Meters
(feet)
210 200 195
0-600
(0-2000)
#2 #2
195 185 180
600-1200
(2000-4000) #2 #2
185 175 170
1200-1800
(4000-6000) #2 #2
170 165 155
1800-2400
(6000-8000) #2 #2
160 155 145
2400-3000
(8000-10,000)
#2 #2
150 140 135
3000-3700
(10,000-12,000)
#2 #1
If fuel = 93 non-oxygenated, decrease main jet size by 5.
Clutch Settings
DRIVE CLUTCH
ALTITUDE
meters
Shift Clutch
(feet)
Weight Spring
0-900
BROWN
(0-3000)
10
900-1800
(3000-6000)
1800-2700
10M-B RED/WHT
(6000-9000)
2700-3700
10M-W
(9000-12,000)
Drive Clutch Bolt Torque: 50 lb.ft. (68Nm)
Re-torque after running engine.
Ambient Temperature
190 185 175 170
#2 #2 #2 #2 #2
175 170 165 155
#2 #2 #2 #2 #1
165 160 155 145
#2 #2 #2 #1 #1
155 150 140 135
#2 #2 #1 #1 #1
145 140 130 120
#1 #1 #1 #1 #1
130 125 120 110
#1 #1 #1 #1 #1
DRIVEN CLUTCH
Clutch Driven
Gearing
Spring Helix
36D
Silver 19:41-66
#2
170
#1
155
#1
145
#1
135
#1
120
#1
110
#1