106 2027
Instruction 106-2027
S&S Cycle, Inc
Copyright © 2007
235 Causeway Blvd.
La Crosse, Wisconsin 54603
by S&S® Cycle, Inc.
Phone: 608-627-1497 • Fax: 608-627-1488
Technical Service Phone: 608-627-TECH (8324)
Technical Service Email: [email protected]
Website: www.sscycle.com
All rights reserved.
Printed in the U.S.A.
Because every industry has a leader
Emission-Related Installation Instructions for
S&S® 49-State EPA Certified Engines
S&S parts are designed for high performance, off road, racing applications
and are intended for the very experienced rider only. The installation of S&S
parts may void or adversely effect your factory warranty. In addition such
installation and use may violate certain federal, state, and local laws, rules
and ordinances as well as other laws when used on motor vehicles used on
public highways, especially in states where pollution laws may apply. Always
check federal, state, and local laws before modifying your motorcycle. It is
the sole and exclusive responsibility of the user to determine the suitability
of the product for his or her use, and the user shall assume all legal, personal
injury risk and liability and all other obligations, duties, and risks associated
The words Harley®, Harley-Davidson®, H-D®, Sportster®, Evolution®, and all
H-D part numbers and model designations are used in reference only. S&S
Cycle is not associated with Harley-Davidson, Inc.
Before installing your new S&S part it is your responsibility to read and follow
the installation and maintenance procedures in these instructions and follow
the basic rules below for your personal safety.
Gasoline is extremely flammable and explosive under certain conditions
and toxic when breathed. Do not smoke. Perform installation in a well
ventilated area away from open flames or sparks.
If motorcycle has been running, wait until engine and exhaust pipes
have cooled down to avoid getting burned before performing any
installation steps.
Before performing any installation steps disconnect battery to eliminate
potential sparks and inadvertent engagement of starter while working
on electrical components.
Read instructions thoroughly and carefully so all procedures are
completely understood before performing any installation steps.
Contact S&S with any questions you may have if any steps are unclear or
any abnormalities occur during installation or operation of motorcycle
with a S&S part on it.
Consult an appropriate service manual for your motorcycle for correct
disassembly and reassembly procedures for any parts that need to be
removed to facilitate installation.
Use good judgment when performing installation and operating
motorcycle. Good judgment begins with a clear head. Don’t let
alcohol, drugs or fatigue impair your judgment. Start installation
when you are fresh.
Be sure all federal, state and local laws are obeyed with the installation.
For optimum performance and safety and to minimize potential
damage to carb or other components, use all mounting hardware that is
provided and follow all installation instructions.
Motorcycle exhaust fumes are toxic and poisonous and must not be
breathed. Run motorcycle in a well ventilated area where fumes can
Statements in this instruction sheet preceded by the following words are of
special significance.
Means there is the possibility of injury to yourself or others.
Means there is the possibility of damage to the part or motorcycle.
Other information of particular importance has been placed in italic type.
S&S recommends you take special notice of these items.
All S&S parts are guaranteed to the original purchaser to be free of
manufacturing defects in materials and workmanship for a period of twelve
(12) months from the date of purchase. Merchandise that fails to conform to
these conditions will be repaired or replaced at S&S’s option if the parts are
returned to us by the purchaser within the 12 month warranty period or within
10 days thereafter.
In the event warranty service is required, the original purchaser must call or
write S&S immediately with the problem. Some problems can be rectified by
a telephone call and need no further course of action.
A part that is suspect of being defective must not be replaced by a Dealer
without prior authorization from S&S. If it is deemed necessary for S&S to
make an evaluation to determine whether the part was defective, a return
authorization number must be obtained from S&S. The parts must be packaged
properly so as to not cause further damage and be returned prepaid to S&S
with a copy of the original invoice of purchase and a detailed letter outlining
the nature of the problem, how the part was used and the circumstances at
the time of failure. If after an evaluation has been made by S&S and the part
was found to be defective, repair, replacement or refund will be granted.
(1) S&S shall have no obligation in the event an S&S part is modified by any
other person or organization.
(2) S&S shall have no obligation if an S&S part becomes defective in whole or in
part as a result of improper installation, improper maintenance, improper use,
abnormal operation, or any other misuse or mistreatment of the S&S part.
(3) S&S shall not be liable for any consequential or incidental damages
resulting from the failure of an S&S part, the breach of any warranties, the
failure to deliver, delay in delivery, delivery in non-conforming condition, or
for any other breach of contract or duty between S&S and a customer.
(4) S&S parts are designed exclusively for use in Harley-Davidson® and other
American v-twin motorcycles. S&S shall have no warranty or liability obligation
if an S&S part is used in any other application.
Installation Overview
This S&S® 49-State EPA Certified Engine is approved for use in assembled highway motorcycles and conforms to USEPA regulations applicable to the
model year in which it was produced. A small volume manufacturer, kit manufacturer or assembler using this engine does not have to apply for a
separate emission certificate with the EPA. A vehicle built according to the requirements given is considered a certified vehicle by the EPA.
Included in these instructions are requirements the manufacturer of the motorcycle, kit manufacturer, or assembler is required to follow in order to
insure the engine meets exhaust and permeation emission standards. Prior to starting installation of this engine these requirements should be read
and understood.
Failure to meet the requirements outlined in the instructions is a violation of the Clean Air Act and will make the manufacturer of the motorcycle, kit
manufacturer, or assembler subject to penalties and fines.
Installation Requirements
No changes may be made to the engine that could reasonably be expected to increase its exhaust emissions for any pollutant. This includes changes
to the fuel metering system; changes to the ignition system; changes to the camshaft; and modifying, recalibrating, removing, or failing to properly
install any other specified component. The following requirements must also be met when installing this engine.
NOTE: Specifications for your engine are listed at the end of the instruction sheet.
Gear Ratio
This engine may only be installed in a highway motorcycle or kit with an N/V ratio less than or equal to the N/V ratio given for your engine. The N/V
ratio is the engine RPM divided by the vehicle speed in miles per hour in high gear. This determines the maximum RPM of the engine for a given
vehicle speed in high gear. To find the N/V ratio for your application divide the engine speed by the vehicle speed while traveling in high gear. The
following table gives maximum RPM’s for the given speed and N/V ratio.
N/V Ratio
Speed (mph)
Maximum RPM
NOTE: This N/V ratio is equivalent to 1990-99 Harley-Davidson® FXD and FLH models with stock gearing and tire size.
This engine may only be installed in a highway motorcycle with a final weight that is equal to or less than the weight listed in the specifications for
your engine at the end of this manual.
The exhaust system used on the motorcycle must meet backpressure specifications. The total (stagnation) pressure must be in the range given in
the specifications for your engine found at the end of this manual. This measurement is taken 6.5” from the inlet of the front exhaust header with
the engine operating at 2000 RPM ±100 RPM in neutral. The total stagnation pressure can be measured using a pitot tube facing into the exhaust
stream and a manometer that reads in inches of water.
A unique label with the heading “Vehicle Emissions Control Information” is provided with the engine. This label contains the engine family
identification, engine tune-up specifications, and the serial number of your engine.
The label must be installed on the motorcycle frame or on a part that is permanently attached to the frame and the label must be located so that it
is visible with the seat removed.
NOTE: Clean the area where the label will be affixed before installing it. Once affixed the label is permanent and can not be removed without the label
being destroyed.
The EPA permeation standard applies to fuel tanks and fuel lines. To meet the permeation standard the following conditions must be met for the
fuel tank and fuel lines.
The fuel tank consists of the fuel tank and any components mounted directly to it excluding fuel lines. This includes the fuel cap if it is mounted
directly to the tank. To meet the permeation standard the fuel tank must be constructed of metal and all gaskets on the fuel tank have a total
exposed surface area of less than 1,000 mm2.
The exposed surface area of the gaskets is considered to be the surface area of the gasket that is exposed to fuel or fuel vapor. To determine the
exposed surface area of a circular gasket the following equation would be used:
Exposed Surface Area= a x 3.14 x d
where: a = thickness of the gasket
d = ID of circular opening
To determine the exposed surface area on an o-ring seal the following equation would be used:
Exposed Surface Area= 0.25 x 3.14 x (X2 – Y2)
where: X = ID of circular opening
Y = OD of inset groove for o-ring
The fuel line used on the engine must also meet permeation standards. The permeation standard applies to any line that carries fuel or fuel vapor
that is not vented to atmosphere. This includes, but is not limited to, the fuel line from the tank to the carburetor and any fuel tank crossover lines.
The fuel hose included with S&S engines meets the permeation standards based on the design of the hose. This fuel hose may be used and can be
shortened if needed. Any additional fuel lines used that are not vented to atmosphere must meet the standard. This can be achieved by using hose
that meets Rll-A or R12 SAE J30 specifications. Additional fuel hose is also available from S&S.
Installation Notes
S&S® Engines may include instruction sheets for individual components. Most instructions apply to all S&S Engines. In the following
instances, however, components or procedures supplied with and described for S&S 49-State EPA Certified Engines are different from those
for other S&S Engines.
• Some S&S Engines may be configured to allow crankcase pressure to exit via the crankcase and/or cylinder head vents. S&S 49-State EPA-Certified
Engines must only utilize cylinder head venting.
• The camshaft supplied in S&S 49-State EPA Certified Engines is of proprietary S&S design. This camshaft has been designed to allow the engine to meet
exhaust emission standards. Substitution of a camshaft with different specifications is not permitted and would be in violation of the Clean Air Act.
• S&S 35/8” bore engines come equipped with an S&S Super Stock® ignition system that is preset at the factory. Breaking the tamper proof seal will void
the warranty on the engine.
• The Super Stock and IST ignition system requires the use of a 3 OHM single-fire coil like the S&S coil PN 55-1571.
• The carburetor supplied with S&S 49-State EPA Certified Engines is not to be adjusted. For service requirements, contact S&S Cycle Technical Services,
608-627-1497. The tuning instructions described in S&S Carburetor Instruction Sheet No. 400 do not apply to carburetors supplied with S&S 49-State
EPA Certified Engines. More specific information can be found in your S&S 49-State EPA Certified Engine Owners manual.
• The carburetors included with 49-State Engines are butterfly type carburetors with a preset idle mixture screw and preset midrange and high speed
jets. The carburetors also feature an accelerator pump and variable fast idle device for improved throttle response, engine starting, and warm ups.
The Super E carburetor has a 17⁄8" (47.6mm) bore at the butterfly and a 19⁄16" (39.6mm) venturi. The Super G carburetor has a 21⁄16" (52.3mm) bore at the
butterfly and a 13⁄4" (44.5mm) venturi.
Installation Instructions
This S&S 49-State EPA Certified Engine has been manufactured, assembled, and calibrated by S&S Cycle, Inc. Before proceeding, verify that this
engine fulfills the requirements for your motorcycle. Installing an S&S engine into a motorcycle requires specialized knowledge, skills, and tools. For
this reason installation should be performed by a professional mechanic.
Improper installation of engine or related components could result in injury or death to the operator and/or passenger and damage to
the motorcycle.
1- Install the S&S engine into the motorcycle chassis according to the chassis service manual.
2- Install the ignition module.
A- For engines equipped with the IST or Super Stock C ignition system follow the installation instruction included with module.
B- For engines equipped with Super Stock ignitionI- Mount VOES switch with the included bracket as close to the carburetor as possible.
Picture 1
II- Connect the VOES hose from the switch to the nipple in the manifold. Trim the hose to be as short as possible without stretching or
kinking it.
III. Make electrical connections according to following chart and wiring diagram.
Ignition Module
Switched 12-volt power
Small ring terminal
Front cylinder on coil
Small ring terminal
Rear cylinder on coil
Small ring terminal
Tab assembly (male)
Tachometer/Diagnostic Port
Tab assembly (male)
VOES Switch
Large ring terminal
Ignition module
Receptacle assembly (female)
3- Install Oil Lines
A- First, flush the oil tank and lines and install a new oil filter that has been filled with oil.
New oil tanks and lines must be flushed to remove any debris that could damage the engines oiling system.
B- Connect oil lines following the diagram on the following page. Do not connect the oil feed line to the engine at this time.
C- Clamp off the open end of the oil feed line and fill the oil tank with oil of the appropriate type and grade recommended in the S&S® 49-State
EPA Certified Engine Owner’s Manual.
D- Unclamp the feed line to allow the line to fill with oil; then quickly attach it to the fitting on the oil pump. The oil pump was primed at
the factory so no further priming should be necessary. It is necessary to confirm that oil is circulating properly prior to operating the
E- To confirm proper circulation of oil:
1-Remove both spark plugs.
2-Remove the oil return line from the oil tank and place the end in a suitable container.
3-Using the starter, turn the engine several rotations. Oil should come out the return line. If not, repeat the procedure as needed.
4-Reconnect the return line to the oil tank and install the spark plugs.
Lack of oil circulation through the engine will cause damage to the internal engine components.
Throttle Requirements
NOTE: S&S Super E & G carburetors require the use of a two cable, pull open - pull closed throttle assembly. All models equipped with a single cable throttle
mechanism must be converted to the two cable, pull open - pull closed type. S&S offers a variety of these throttle assemblies.
Single, braided wire cable throttle mechanisms cannot mechanically close the throttle. If the throttle inadvertently sticks in the open
position, loss of control of motorcycle and personal injury to you or others may result.
Any motorcycle equipped with single cable throttle system must be converted to a two cable system. Kits with 36" (91cm), 39" (99cm), 42" (107cm),
48" (122cm), or 52" (132cm) length cables are available. Throttle assembly kits may be ordered separately. See descriptions on next page.
Two cable throttle systems designed for a butterfly type carburetor have cable fittings that can simply be “plugged in” to the S&S Super E or G
carburetor throttle linkage.
Optional S&S Two Cable Throttle Kits
Kits fit 1” (25.4mm) O.D. handlebars and can be used on most chassis. An adapter sleeve is available for use with handlebars having 7/8” (22.2mm)
ends. Fittings on provided cables readily “plug in” to S&S® Super E, G, or stock H-D 1981 and later butterfly type carburetors. Kits include one opening
side cable, one closing side cable, left and right handlebar grips, and handlebar clamps.
••Throttle kit with 36” (91cm) cables PN 19-0450 ••Throttle kit with 42” (107cm) cables PN 19-0482
••Throttle kit with 39” (99cm) cables PN 19-0448 ••Throttle kit with 48” (122cm) cables PN 19-0449
••7/8” to 1” (22.2 to 25.4mm) Adapter sleeve PN 19-0235
NOTE: 1981 to 1990 OEM style cables may be used as replacement cables for throttle kits above.
4- Throttle/Cables
A- Install new throttle assembly.
I- Install new throttle assembly and cables. Position grip and cables so cables can be angled towards carb for easy adjustment and free
II- Apply light coat of clean cable lubricant to cables and fittings. Loosen cable adjustment locknuts and turn adjusting screw so half of
the threads are exposed.
5- Throttle/Cable Assembly
A- Install throttle cables on carburetor.
I- Remove throttle cable housing bracket, PN 11-2339.
II- Install opening side throttle cable barrel fitting and throttle cable in throttle linkage on appropriate side of throttle cable housing
bracket. Opening side cable housing outside diameter is smaller and measures .190” (4.826mm).
III- Repeat step II for closing side throttle cable. Closing side cable has a spring around inner cable wire.
IV- Reinstall throttle cable housing bracket on carburetor.
B. Turn throttle cable adjusters to remove excessive free play. Test the throttle to ensure it opens and closes freely. The throttle should snap
shut when released. Turn handlebars to extreme left and open and close throttle, then turn bars to extreme right and repeat. If throttle
binds, loosen cable adjusters to put more free play in cables. Tighten the adjusting screw locknuts after final adjustments are made.
NOTE: Throttle grip assembly must be assembled correctly and work freely to prevent possible sticking during operation. Cable routing must be free of
tight bends to minimize cable to cable housing friction. Throttle must not bind and must snap shut to fully closed position when released.
Incorrect cable adjustment may cause throttle to stick open, causing loss of control of motorcycle, serious injury or death.
6- Connect compression releases 4” and 41/8” bore engines only
A- The compression release wires have Deutsch connectors that are installed in-line to allow separation of the releases from the main wiring
B- Push the lead wires into the Deutsch connector until you hear a click from them as they slide into position. Verify that the wires are in place
by firmly pulling them while you hold the connector. When making these connections, there is no proper orientation to worry about—just
be sure to make solid connections. In the main wiring harness, the green wire is powered during cranking and the black is the ground.
C- Slide the orange wedge into the connector and listen for an audible click as it goes into position.
D- Connect the compression release solenoid lead wire Deutsch connectors to the main wiring harness.
E- Slide the supplied 4-foot black sleeve over the wire harness until it reaches the connectors—but keep in mind that you will have to cut the
sleeve to allow access for a fuse holder in a few steps.
F- Use the drawing below to help locate the wiring connection points on your motorcycle.
G- Position the main harness with the compression release lead wires so they are not pulled tightly against anything. Once the best position
is found, zip-tie the connectors and that end of the harness securely to the frame to prevent movement.
H- Working from the end that you secured earlier, work out a routing position for the remaining portion of the wire harness, making sure the
wires will not be crushed, cut, scuffed, or otherwise damaged by operation of the motorcycle. The black wire will need to be routed to a
ground, and the green wire to power supplied during cranking only.
I- Find a suitable place to splice the supplied fuse holder into the green wire of the harness as close to the power source as possible.
J- Once the position of the fuse holder has been determined, cut the protective sleeve at that point, being careful not to damage the wires
K- Cut the green wire of the harness where it meets the fuse holder lead wire and slide one of the supplied pieces of shrink-wrap on it.
L- Strip the green wire and a wire from the fuse holder and connect them with the supplied butt connector. After making sure the wires are
securely connected, seal them in place with heat shrink. Use the same procedure to connect the other side of the fuse holder.
M- Install a small piece of protective sleeve over the remaining fuse holder wire that runs up to the connection point.
7- Install Fuel Tank
A- Install fuel tank making sure it does not come in contact with engine or sensors.
8- Fuel Hose
A- Slip hose clamp over end of fuel hose that is included with the engine. Lubricate the steel fuel inlet tube attached to the carburetor by
applying a thin coating of oil. Slip end of fuel hose over tube.
B- Position fuel hose to avoid contact with hot cylinders or other engine parts. The steel tube on the carburetor can be rotated as needed.
Tighten hose clamp securing the fuel hose to the carburetor fitting. Slip protective fuel hose covering over fuel hose and position it to
prevent direct contact between fuel hose and cylinders or other engine parts.
C. Connect fuel hose to gas tank petcock using hose clamp provided.
Gasoline is extremely flammable and explosive under certain conditions. Do not smoke or expose gasoline to sparks or open flame.
Gasoline fumes are toxic when inhaled. Perform installation in a well ventilated area away from open flames or sparks. Unwarranted
sparks and inadvertent engagement of starter while working on electrical components can cause serious injury or death.
Engines vented through heads must not have breather bosses plugged, as oil leakage and damage may occur.
Fuel hose must be clamped securely and not contact any hot surfaces where it could melt or catch fire, causing serious injury or death.
9- Final assembly and checks.
A- Connect vacuum petcock hose (if equipped).
B- Check fuel line routing and connections.
C- Test throttle to ensure it opens and closes freely. Turn handlebars to extreme left and open and close throttle, and then turn bars to extreme
right and repeat. Throttle must snap closed in all positions.
D- Reassemble any remaining components.
E- Install emission control label on motorcycle frame.
F- Verify all emission related instructions and requirements have been met.
G- Fill gas tank.
H- Check carburetor fuel inlet fitting and fuel line connections for leaks.
NOTE: Fuel needle and seat assembly must completely shut off fuel supply entering bowl. Fuel inlet fitting and fuel line connections must not leak.
Gasoline leaking past inlet needle may flood engine causing fire hazard or damage to components.
Gasoline leaks at inlet o-rings, fuel line connections, or inlet needle may flood engine and overflow into surrounding area creating fire
I- See S&S® 49-State EPA Certified Engine Owner’s Manual for engine starting instructions.
Failure to break-in engine according to correct procedure may result in serious damage to engine that is not repairable under warranty.
10-Troubleshooting Tips
A- Engine will not start:
I- Fuel tank may be empty or petcock may be in closed position.
II- Weak or no-spark condition may be caused by a discharged battery, damaged ignition module, or damaged coil. Verify the condition
of components.
III- Spark plug gap may be too wide.
B- Engine will not run at steady speed or rpm:
I- There may be a restriction in fuel supply system (gas tank vent plugged, needle and seat not working properly, etc.)
II- Faulty ignition system. Check for fouled plugs, defective coil, defective electronic module, or improper ignition timing.
GENERAL INFORMATION NOTE: When the motorcycle is not running, the petcock should always be turned off to prevent possible fuel leakage past the
needle and seat.
Complete remainder of installation according to the applicable service manuals. Refer to the S&S® 49-State EPA Certified Engine Owner’s Manual for
important information on breaking in the engine.
V107E Specifications
V124E Specifications
V89E Specifications
Maximum N/V Ratio
Maximum N/V Ratio
Maximum N/V Ratio
Maximum Vehicle Weight
1058 lb (480 kg)
Maximum Vehicle Weight
992 lb (450 kg)
Maximum Vehicle Weight
992 lb (450 kg)
Exhaust Backpressure
Exhaust Backpressure
Exhaust Backpressure
9.5" H20
8.0" H20
5.0" H20
4.7" H20
2.7" H20
0.6" H20
V117E Specifications
V88E Specifications
V100E Specifications
Maximum N/V Ratio
Maximum N/V Ratio
Maximum N/V Ratio
Maximum Vehicle Weight
1058 lb (480 kg)
Maximum Vehicle Weight
992 lb (450 kg)
Maximum Vehicle Weight
992 lb (450 kg)
Exhaust Backpressure
Exhaust Backpressure
Exhaust Backpressure
9.5" H20
8.0" H20
5.0" H20
4.7" H20
2.7" H20
0.6" H20
V113E Specifications
V80E Specifications
V96E Specifications
Maximum N/V Ratio
Maximum N/V Ratio
Maximum N/V Ratio
Maximum Vehicle Weight
992 lb (450 kg)
Maximum Vehicle Weight
992 lb (450 kg)
Maximum Vehicle Weight
992 lb (450 kg)
Exhaust Backpressure
Exhaust Backpressure
Exhaust Backpressure
8.0" H20
5.0" H20
5.0" H20
2.7" H20
0.6" H20
0.6" H20
V111E Specifications
V93E Specifications
V79E Specifications
Maximum N/V Ratio
Maximum N/V Ratio
Maximum N/V Ratio
Maximum Vehicle Weight
1058 lb (480 kg)
Maximum Vehicle Weight
992 lb (450 kg)
Maximum Vehicle Weight
992 lb (450 kg)
Exhaust Backpressure
Exhaust Backpressure
Exhaust Backpressure
9.5" H20
5.0" H20
5.0" H20
4.7" H20
0.6" H20
0.6" H20
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