Polaris 2005 SPORTSMAN 400, Servise Manual, Page: 9 / 312

GENERAL INFORMATION
1.5
MODEL:
2005 SPORTSMAN 400
. . . . . . . . . .
MODEL NUMBER: A05MH42AB, AG, AH .
ENGINE MODEL: EH42PLE . .
Engine
Platform Fuji 4 stroke, Single Cylinder
Engine Model Number EH42PLE05
Engine Displacement 425cc
Number of Cylinders 1
Bore & Stroke (mm) 87.9 x 70 mm
Compression Ratio 9.2:1
Compression Pressure 50--90 psi
Engine Idle Speed 1100
±
200 Rpm
Cooling System/Capacity Liquid / 2.25 qts. (2.1 L)
Overheat Warning HOT on Instrument Cluster
Lubrication Pressurized Dry Sump
Oil Requirements Polaris 0W--40
Exhaust System Single Pipe
Carburetion
Carburetor model Mikuni BST 34mm
Main Jet 172.5
Pilot Jet 40
Jet Needle 4GAC33--3
Needle Jet Q--0(829)
Pilot Screw 2.75 Turns Out
Pilot Air Jet 160
Float Height 13
±
1 mm (0.51
±
0.40“)
Fuel Delivery Fuel Pump
Fuel Capacity / Requirement 4.25 gal. (19.9L)
87 Octane (minimum)
89 Oxygenated
Electrical
Alternator Output 240 w @ 3000 RPM
Voltage Regulator 3--Phase -- Sure Power
Lights : High Beam 50 watts
Low Beam 37 watts
Brake 26.9 watts
Tail 8.26 watts
Worklight 12 watts
Ignition System DC/CDI Ignition
Ignition Timing 30
° ±
2
°
BTDC @ 5000 RPM
Circuit Protection Solid State
Spark plug / Gap NGK BKR5E/ .036 in . / 0.9 mm
Battery / Model / Amp Hr Maintenance--Free -- 12 Amp Hr
Starting Electric / Recoil Backup
Instrument Cluster LCD
Drivetrain
Transmission Type Drum Shift H/L/N/R/P
Transmission Capacity 32 oz.
Front Gearcase Capacity 5 oz. (147.8 ml)
Gear Ratio : Low
High
Rev.
Final
23.91 / 1
10.49 / 1
16.30 / 1
3.82 / 1
Clutch Type PVT Non EBS
Belt 3211077
Steering / Suspension
Front Suspension / Shock A--arm / MacPherson Strut
Front Travel 8.2 in. / 20.8 cm
Rear Suspension
Style / Shock
Progressive Rate Independent
w/ Two x 2” Coil--over shocks
Rear Travel 9.5 in. / 24.13 cm
Ground Clearance 11 in. / 27.94 cm
Shock Preload Adjustment
Front / Rear
Spring tension -- Std.
Turning Radius 65 in. / 165.10 cm
Toe Out 0 -- 1/16 in / .0 -- .159 mm
Wheels / Brakes
Wheel/Tire Size -- Front 25 x 8 -- 12 / 4--156
Wheel/Tire Size -- Rear 25 x 11 -- 12 / 4--156
Air Press. F/R Tires 5 psi Front / 5 psi Rear
Brake -- Front Dual Hydraulic Disc
Brake -- Rear Single Hydraulic Disc
Brake Fluid Polaris DOT 3 Brake Fluid
JETTING CHART
Altitude
Meters
(Feet)
AMBIENT TEMPERATURE
0--1800
(0--6000)
above 1800
(above 6000)
Below 40
°
F
Below 5
°
C
+40
°
F to +80
°
F
+5
°
C to +28
°
C
177.5 172.5
170 165
CLUTCH CHART
Altitude
Meters
(Feet)
0--1800
(0--6000)
1800--3700
(6000--12000)
Shift
Drive
Spring
Driven
Helix
Weight
10 WH
20--40
34--38
°
Second
Spring
Black
(5630710)
(5631356)
(7041782)
(5133920)
(7041782)
(7041157)
(7042202)
34--38
°
(5133920)
Black
Blu/Grey
Blu/Grn
Driven Helix Position: 2--2