Polaris Trail Blazer Service Manual page 37

GENERAL INFORMATION
1999 Model Specifications
SPORTSMAN 500 / SPORTSMAN 500 RSE*
MODEL: . . . . . . . . . .
MODEL NUMBER: . A99CH50AA/AB/AC
ENGINE MODEL: . . EH50PLE09
CARBURETION
Type . . . . . . . . . . . . . . . .
Main Jet . . . . . . . . . . . .
Pilot Jet . . . . . . . . . . . . .
Jet Needle . . . . . . . . . . .
Needle Jet . . . . . . . . . . .
Throttle Valve . . . . . . . .
Pilot Screw . . . . . . . . . .
Pilot Air Jet . . . . . . . . . .
Valve Seat . . . . . . . . . . .
Fuel Octane (R+M/2) .
CLUTCH
Type . . . . . . . . . . . . . . . . . . . .
Belt . . . . . . . . . . . . . . . . . . . . .
Belt Width (Projected) . . . . .
Side Angle (Overall) . . . . . .
Outside Circumference . . . .
Center Distance . . . . . . . . . .
Clutch Offset . . . . . . . . . . . .
Shift Weights . . . . . . . . . . . .
Primary Spring . . . . . . . . . . .
Secondary Spring . . . . . . . .
Driven Helix . . . . . . . . . . . . .
Spring Position (Helix) . . . .
Spring Position (Sheave)
ENGINE
Type . . . . . . . . . . . . . . . . . . . . . . .
Displacement . . . . . . . . . . . . . . .
Bore . . . . . . . . . . . . . . . . . . . . . . .
Stroke . . . . . . . . . . . . . . . . . . . . .
Compression Ratio . . . . . . . . . .
Cooling . . . . . . . . . . . . . . . . . . . .
Lubrication Type . . . . . . . . . . . .
Piston / Cylinder Clearance
Service Limit . . . . . . . . . . . . . . . .
Piston Marking . . . . . . . . . . . . . . .
Piston Ring End Gap . . . . . . . .
Operating RPM±200 . . . . . . . . .
Idle RPM±200 (lights off)
Compression Pressure
*Remingtont Special Edition
4/99
BST 34 Mikuni
155
40
4HB41-3
Q-0
#100
2 5/8 Turns Out
160
1.5
87 Non-Oxygenated or
89 Oxygenated
PVT
3211069
1.188" (30.18mm)
26°
40.86 ±.12"
10±.12" (254.5mm)
0.5" (12.7mm)
10MH
Blue/Green
White w/Green Stripe
Compound (EBS)
N / A
. . N / A
4 Cycle, Single Cyl.
498 cc
3.625" (92mm)
2.955" (75mm)
10/2 Full Stroke
Liquid
Dry Sump
. . . 0.0006 - 0.0018" (0.015 - 0.046mm)
0.0024" (0.061mm)
.008"-.015" (.20mm-.38mm)
6000 RPM
. . . . . 1200 RPM
. . . . . . . (Std) ±15%
JETTING CHART
Altitude Altitude
Below 0°F Below 0 F
Below -18°C
Meters Meters 0-900 0-900
(0-3000)
(Feet) (Feet)
900-1800 900-1800
(3000-6000)
1800-2700 1800-2700
(6000-9000)
2700-3700 2700-3700
(9000-12000)
- Pilot screw in 1/2 turn
CLUTCH CHART
Altitude Altitude
Meters Meters
0-900 0-900
(Feet) (Feet) (0-3000)
900-1800 900-1800
(3000-6000)
1800-2700 1800-2700
(6000-9000)
2700-3700 2700-3700
(9000-12000)
* EBS requires no helix adjustment
1.34
AMBIENT TEMPERATURE
0_ to +40_F 0 to +40 F +40_to +80_F +40 to +80 F
-18_to +5_C +5_ to +26_C
167.5 167 5 162 5 162.5 155 155
162.5 162 5 157.5 157 5 152 5 152.5
160 160 152 5 152.5 147 5 147.5
155 155 147 5 147.5 142 5 142.5
Shift Shift Clutch Clutch Driven Driven
Weight Weight Spring Spring Helix Helix
10MH 10MH Blue/Green Blue/Green EBS EBS
10BH 10BH Blue/Green Blue/Green EBS EBS
10WH 10WH Blue/Green Blue/Green EBS EBS
10RH 10RH Blue/Green Blue/Green EBS EBS
Polaris Sales Inc.
Above +80 F Above +80_F
Above +26_C
150 150
145 145
142.5 142 5
137.5 137 5