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GENERAL INFORMATION
1999 Model Specifications
SCRAMBLER 400
MODEL:
. . . . . . . . . .
MODEL NUMBER:
.
A99BG38C(A or B)
ENGINE MODEL:
. .
EC38PLE09
CARBURETION
Type
. . . . . . . . . . . . . . . .
Main Jet
. . . . . . . . . . . .
Pilot Jet
. . . . . . . . . . . . .
Jet Needle
. . . . . . . . . . .
Needle Jet
. . . . . . . . . . .
Cutaway
. . . . . . . . . . . .
Air Screw
. . . . . . . . . . .
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
. . . . . . . . . . . . . .
Compression Pressure
. . . . . . .
4/99
VM34SS Mikuni
230
35
6CEY6-3
0-6(480)
1.5
1.5 Turn
2.5
87 Non-Oxygenated or
89 Oxygenated
PVT
3211077
1.188" (30.18mm)
26°
. . . .
40.86 ±.12"
10±.12" (254.5mm)
0.5" (12.7mm)
S55
White
Red
40°
. . . .
2
. .
2
2 Cycle, Single Cyl.
378 cc
3.2677" (83mm)
2.7559" (70mm)
6.9/1 Effective
Liquid
Oil Injected
. . .
0.0023 - 0.0037" (0.06 - 0.09mm)
0.006" (0.15mm)
.007"-.015" (.18mm-.38mm)
5700 RPM
600 RPM
(Std) ±15%
JETTING CHART
Altitude
Altitude
Below 0 F
Below 0°F
Below -18°C
Meters
Meters
0 900
0-900
270 MJ
270 MJ
(0 3000)
(0-3000)
(Feet)
900 1800
900-1800
250 MJ
250 MJ
(3000-6000)
(3000 6000)
1800 2700
1800-2700
220 MJ
220 MJ
(6000-9000)
(6000 9000)
2700 3700
2700-3700
200 MJ
200 MJ
(9000 12000)
(9000-12000)
MJ = Main Jet
AS = Air Screw (Turns Out)
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)
1.26
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
250 MJ
250 MJ
230 MJ
230 MJ
0.5 AS
1.0 AS
1.5 AS
230 MJ
230 MJ
210 MJ
210 MJ
0.5 AS
1.0 AS
1.5 AS
210 MJ
210 MJ
195 MJ
195 MJ
1.5 AS
1.5 AS
1.75 AS
190 MJ
190 MJ
175 MJ
175 MJ
1.5 AS
1.75 AS
1.75 AS
Shift
Shift
Clutch
Clutch
Driven
Driven
Weight
Weight
Spring
Spring
Helix
Helix
S 55
S- -55
White
White
2 2
2- -2
S- -55
S 55
White
White
2- -2 or 2- -1
2 2 or 2 1
S
S
White
White
2- -1
2 1
S or
S or
White
White
2- -1
2 1
10MH
Polaris Sales Inc.
Above +80 F
Above +80_F
Above +26_C
210 MJ
210 MJ
1.5 AS
195 MJ
195 MJ
1.75 AS
175 MJ
175 MJ
1.75 AS
160 MJ
160 MJ
1.75 AS
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