CLUTCH
6.9
DRIVE CLUTCH SPRING SPECIFICATIONS
The drive clutch spring has two
primary functions:
1.
Controls clutch engagement
RPM.
The springs which have a
higher rate when the clutch is in
neutral
will
increase
clutch
engagement RPM.
2.
Controls the rate at which the
drive belt moves upward in the
drive clutch sheaves.
This is
referred to as drive clutch upshift.
The drive clutch spring is one of the
most critical components of the PVT
system. It is also one of the easiest to
service. Due to the severe stress the
coil spring is subject to during
operation, it should always be
inspected for tolerance limits during
any clutch diagnosis or repair.
There are other components which
control upshift, but the spring is one of
the primary components in insuring
optimum performance.
It is very
important that the spring is of correct
design and is in good condition.
CAUTION:
Never shim a drive clutch
spring to increase its compression
rate. This may result in complete
stacking of the coils and subsequent
clutch component failure.
Measuring Spring Length:
With the spring resting on
a flat surface, measure its free length from the outer coil
surfaces as shown. Refer to the spring specification
chart for specific free length measurements and
tolerances. Also check to see that spring coils are
parallel to one another. Distortion of the spring indicates
stress fatigue, requiring replacement.
Primary Clutch Springs
Secondary Clutch Springs
PART
NUMBER
COLOR
CODE
WIRE
DIAMETER
FREE LENGTH
¦
.125
I
PART
NUMBER
DESCRIPTION
7041021
Plain
.157
I
4.38
I
3234199
White
7041022
Black
.140
I
4.25
I
7041063
Purple
.168
I
4.37
I
7041132
White
.177
I
2.92
I
7041168
Green
.177
I
3.05
I
7041157
Blue/Green
.177
I
2.53
I
2.5
2.25
2.00
1.75
1.50
1.25 1.19
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
ATV TRAVEL
COMPRESSED SPRING LENGTH (INCHES)
Green
7041168
Purple
7041063
White
7041132
Plain
7041021
Black
7041022
NEUTRAL
FULL UPSHIFT
Blue/Green
7041157
F
O
RCE
(P
OUNDS
)
Summary of Contents for Sportsman 800 Efi 2005
Page 116: ...ENGINE 3 62 NOTES ...
Page 136: ...FUEL SYSTEM FUEL INJECTION 4 20 NOTES ...
Page 186: ...CLUTCH 6 30 NOTES ...
Page 256: ...BRAKES 9 24 NOTES ...
Page 292: ...ELECTRICAL 10 36 BASIC WINCH WIRING 2005 ATV MODELS 2005 ATV WINCH WIRING DIAGRAM ...
Page 300: ...ELECTRICAL 10 44 NOTES ...
Page 301: ...ELECTRICAL 10 39 WIRING DIAGRAM 2005 SPORTSMAN 700 800 EFI Stator ...
Page 302: ...ELECTRICAL 10 40 WIRING DIAGRAM 2005 SPORTSMAN 700 800 EFI ...