Table of Contents
Advertisement
FUEL SYSTEM/CARBURETION
1998 Specifications
1998 Scrambler 400
W98BC38C
(Engine - EC38PLE-09)
SPECIFICATIONS AND CLUTCHING AND JETTING GUIDELINES
FOR ALTITUDE AND TEMPERATURE
Carburetor VM34SS
Main Jet - 230 Pilot Jet - 35
Float Level - Float arm parallel with bowl gasket surface (Page 4.22)
Cut Away - 1.5 Nickel/Aluminum Air Screw - 1.5 Turn CCW from Seat*
Jet Needle - 6CEY6-3
Needle Jet - 0-6 (480)
Needle Seat - 2.5 (Large Diameter)
Flywheel Marking: FF95
CDI Marking: CU2515
Alternator Output: 150 Watts
Ignition Timing: 23.5° BTDC
@
3000 RPM (± 3°)
Spark Plug: BR8ES
Gap: .028 (.7mm)
Operating RPM: 5700 (± 200)
Idle RPM: 600 (± 100)
*Turn in (clockwise) one quarter turn for each 30° below 60° F.
Turn out (counterclockwise) one quarter turn for each
30°
above 60° F.
Altitude
AMBIENT
Below O°F
0° to 40°F
+40° to +80°F
+80°F
&
Above
TEMPERATURE
(Below -18°C)
(-18°C to +5°C)
(+5°C to +26°C)
(+26°C
&
Above)
Meters
0-900
270 MJ
250 MJ
230 MJ
210 MJ
(Feet)
(0-3000)
0.5 AS
1.0AS
1.5AS
1.5AS
900-1800
250 MJ
230 MJ
210 MJ
195 MJ
(3000-6000)
0.5 AS
1.0AS
1.5 AS
1.75 AS
1800-2700
220 MJ
210 MJ
195 MJ
175 MJ
(6000-9000)
1.5 AS
1.5AS
1.75
1.75 AS
2700-3700
200 MJ
190 MJ
175 MJ
160 MJ
(9000-12000)
1.5AS
1.75 AS
1.75 AS
1.75 AS
MJ - Indicates Main Jet Size
AS - Indicates Air Screw Turns out from Lightly Seated Position
Clutching
Altitude
Shift
Clutch
Driven
Weight
Spring
Helix
Meters
0-900
8-55
White
2/2
(Feet)
(0-3000)
900-1800
S-55
White
2/2
or
(3000-6000)
2/1
1800-2700
8
White
2/1
(6000-9000)
2700-3700
S orC
White
2/1
(9000-12000)
5/98
4.4j
Polaris Industries Inc.
Advertisement
Table of Contents
Troubleshooting
