S&S Cycle Super E & G Series Shorty Carburetors for Harley-Davidson Twin Cam 88 Engines - Manual (Page 2)

S&S ® Super E and Super G Shorty carburetors are compatible with all carburetor-type Harley-Davidson ® Twin Cam 88 ® engines. Easy
adjustment makes S&S carburetors suitable for Twin Cam 88 ® engines regardless of cubic inches or most other modifications. S&S
carburetor cannot be installed on fuel-injection (EFI) models without significant changes to OEM wiring harness and other parts.
NOTES:
●
Stock Twin Cam 88 ® throttle cables are not compatible with S&S carburetors. Cables are same as those designed for S&S carb
installed on’96-up big twin, and are available from S&S and other aftermarket sources.
● Certain combinations of exhaust and camshaft timing can cause erratic carburetion, making correct tuning difficult or impossible.
S&S recommends exhaust system with 1-
3 ⁄
4
" head pipes and full mufflers for most street applications. Because of tuning difficulties
and reduced performance at lower speeds, S&S does not recommend exhaust systems with no mufflers, headpipes larger than 1 3 ⁄
4
",
or overall length greater than 40" (excluding 2-into-1 collector style systems) for general street use. These recommendations are
based strictly on performance, and do not take into account looks, sound, or personal taste.
With exceptions noted below, procedure for installing S&S carburetor on Twin Cam 88 ® engine is same as described on pages 4-14,
instruction 51-1012. Tuning carburetor for Twin Cam 88 ® engine is identical to procedure described in instruction 51-1012, pages 14-20.
Read this instruction and 51-1012 before beginning installation. Certain sections of Instruction 51-1012 apply only to Harley-Davidson ®
Sportster ® models, knucklehead, panhead, or shovelhead engines and may be overlooked.
● Gasoline is extremely flammable, explosive under certain conditions, and the fumes toxic when inhaled. Disconnect battery
ground cable before installation to prevent sparks, do not smoke around gasoline, and perform installation in a well-ventilated
area away from sparks or open flame.
● If motorcycle has been running, wait until engine and exhaust have cooled to avoid getting burned during installation.
INSTALLATION
Majority of installation is described in instruction 51-1012. Differences specific to Twin Cam 88 ® models apply to manifold fittings and
breather hardware, and are described in detail after following section.
Shut off fuel petcock and remove gas tank to access OE manifold, carburetor, etc. On some models, slightly elevating rear of gas tank
will be sufficient.
Remove air cleaner and drain fuel from existing carburetor. Disconnect wiring harness from map sensor and remove fuel petcock
vacuum hose from manifold. Remove carburetor, manifold, choke cable, and any carburetor mounting hardware. Remove map sensor
from manifold.
Prepare S&S air cleaner backplate as explained on Page 5 in instruction 51-1012.
TWIN CAM 88 ®
1- Install stock map sensor in S&S manifold. See Picture 1.
2- Secure sensor to manifold with stock clip and screw. See Picture 2.
3- Install manifold on engine with stock hardware. Connect fuel petcock vacuum hose to manifold fitting and connect
wiring harness to map sensor. See Picture 3.
4- Install insulator block, carburetor, throttle cables, and overflow hose as described in instruction 51-1012. Observe all
notes, cautions, and warnings regarding overflow hose.
2
WARNING
Picture 1 Picture 2 Picture 3