S&S Cycle Street Performance 585 Round Wire Conical Valve Spring Kits User Manual
Page 2
This instruction sheet covers the following S&S valve spring kits:
Kit Application
900-0593
1984-2004 Harley-Davidson® big twin, 1986-2003 XL
900-0594
2005-2014 Harley-Davidson big twin, 2004-2014 XL
900-0595
S&S Super Stock® and X-Wedge® cylinder heads
900-0596
S&S CNC Ported Head 1999-2013 BT, 2004-2013 XL
CAUTION
Do not mix springs, collars or any other components between
S&S Sidewinder spring kits and other S&S spring kits. Extensive
engine damage can result and is not covered under warranty.
WARNING
The safety of the motorcycle rider is dependent of proper
installation of this product. If you are not certain of your
capabilities or do not have the correct tools for this installation,
please consult a professional mechanic. Improper installation of
this product could result in injury or death to the rider.
Disassembly
1. Remove heads from engine and disassemble.
2. If cylinder heads/valves are to be reconditioned, proceed at this
time according to standard procedure.
Spring Installed Height Measurement and Installation
1. Using the following procedure, determine the spring height and
clearance between top collar and valve guide.
a. Install the appropriate bottom collar based on which kit you are
using.
b. Temporary install the valves.
c. Install the top collars and keepers. Pull the top collar tightly against
the keepers to seat the keepers in the collar.
d. While holding the valve firmly against the seat in the closed
position, measure the installed spring height (distance between
lower valve spring seating surface and bottom of top collar. See
Figure 1, below, left. Record this measurement in the table below.
e. Measure distance between top collar keepers and top of the valve
guide. See Figure 1, Dimension B. Distance must be at least .060"
greater than the valve lift of the cam to be used.
f. Repeat steps a through e for remaining valves and record all
measurements in the table. Be sure to keep track of all parts during
assembly to assure they are installed in the same location as they
were measured.
2. Adjust the spring installed heights with the provided shims (if
necessary) so that the value of each spring is within +0.010"/-
0.005"of the target installed height listed in the chart below.
NOTE: If shims are used with kit #900-0594, they must be placed under the
integral lower collar/seal #900-0591.
3. Install valves and springs with the keepers and top collars provided.
Note that the lobe of the S&S keeper must be placed in the top
groove of the valve stem when installing kits 900-0594 and 900-
0596
CAUTION
The keepers must be located in the groove closest to the tip of
the valve. Any other groove will yield the incorrect installed
height and may cause premature valve train failure. S&S is not
responsible for incorrect installation. Consult an S&S dealer or
S&S Sales Representative if you have any doubts as to the correct
installation of this product. See Figure 2, below
2
Fig. 1
Dimension A: Installed spring height must be adjusted to dimension in
step 2.
Dimension B: Must be .060" greather than lift valve for camshaft to be
used.
Front
Exhaust
Front
Intake
Rear
Intake
Rear
Intake
Dimension A
Dimension B
Fig. 2
X-WEDGE®
ALL OTHERS
TARGET
INSTALLED HEIGHT
2.00"
1.85"
SPRING FORCE AT
INSTALLED HEIGHT
90 LB
135 LB
MAXIMUM
VALVE LIFT
0.585"
SPRING FORCE AT
MAX VALVE LIFT
325 LB