S&S Cycle Super E and G Series Shorty Performance Carburetors for 1936-84 Harley-Davidson Big Twins and 1957-85 Ironhead Sportster Models - Manual (Page 2)

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INTRODUCTION
S&S® Super E and G Shorty carburetors are butterfly type
carburetors with fully adjustable idle mixture and circuit and
changeable mid range and high speed jets The high speed circuit
features a changeable air bleed. Both carburetors also feature an
adjustable accelerator pump and variable enrichment/fast idle
device for improved throttle response, engine starting and warm
ups.
The Super E has a 17⁄8" (47.6mm) bore and 19⁄16" (39.6mm)
venturi. It is identified by an "E" cast into the throttle linkage side
of the body below the letters "S&S SUPER". The Super E is
recommended for use on any displacement big twin or Sportster®
model.
The Super G has a 21⁄16" (52.3mm) bore and 3⁄4" (44.5mm)
venturi. It is identified by a "G" cast into the carb body. See
Picture1.
Picture
1
The Super G is recommended for use on modified engines of 100
cubic inches or more. While both carburetors can be made to
work on most engines, the Super G is not recommended for small,
low compression engines. If there is doubt as to which carburetor
to use, S&S suggests the Super E.
IMPORTANT NOTES
• Recommended for Racing Only - S&S Super E & G
carburetors covered by these instructions are not legal
for use in California on motor vehicles operated on
public highways or in other states where similar
pollution laws apply. The user shall determine the
suitability of the product for his or her use and shall
assume all risk and liability in connection therewith.
• Because S&S carburetors are significantly larger than OEM
units, unmodified, small displacement engines such as 883
Sportster® models may experience sluggish low speed
response when equipped with S&S carburetors. This can
often be minimized with performance exhaust and careful
tuning.
• All manufacturer warranties become void if any part of the
carburetor is polished, chrome plated or otherwise altered.
THROTTLE REQUIREMENTS
NOTE: S&S Super E and G carburetors require the use of a two
cable, pull open - pull closed throttle assembly. All 1980 and
earlier stock H-D® models equipped with a single cable throttle
mechanism must be converted to the two cable, pull open-pull
closed type. S&S offers these throttle assemblies, but does not
include them with any carburetor kit because of the multitude of
chassis designs and fitment requirements.
Single, braided wire cable throttle mechanisms cannot
mechanically close the throttle. If throttle inadvertently sticks
in open position, loss of control of motorcycle and personal
injury to operator or others may result.
1980 and Earlier Motorcycles
All stock chassis 1980 and earlier, or any motorcycle equipped
with single cable throttle system must be converted to a two
cable system. Throttle assembly kits may be ordered separately.
1981 to ‘84 Big Twin Models and 1981 to 1985 Harley-
Davidson® Sportster® Models
The stock two cable throttle system designed for stock, butterfly
type carburetors on these models can be installed on the S&S
Super E or G throttle linkage with no cable modification. S&S
Super E and G carb kits for 1936 to 1984 big twins contain a
throttle cable guide designed for stock butterfly type throttle
cables
CARB INSTALLATION
Read instructions thoroughly to familiarize yourself with all
procedures before beginning installation.
NOTE: Installation of S&S® Super E and G carb kits on certain models
is easier with gas tanks removed. Some owners may elect to perform
installation without removing gas tanks. This is left to individual
discretion. If installer elects to remove tanks or other stock parts, S&S
recommends referring to appropriate Harley-Davidson® service
manual for correct removal procedure as necessary.
1- Remove Old Carburetor And Manifold
A- Shut off fuel petcock and disconnect battery.
B- Remove air cleaner assembly. Drain fuel from existing
carburetor. Remove carburetor, manifold, choke cable
and any carburetor mounting hardware.