S&S Cycle Super E and G Series Shorty Performance Carburetors for 1936-84 Harley-Davidson Big Twins and 1957-85 Ironhead Sportster Models User Manual
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insulatorblock.
2- 1936-’65 knucklehead and panhead big twins - Bolt
carb and insulator block to intake manifold, (O-ring
side of block faces manifold) These kits include one
3⁄8"-16 x 11⁄4" socket cap screw and one 3⁄8"-16 x
13⁄8" socket cap screw. Use the longer screw in the
bottom manifold bolt hole to secure the crankcase-
to-manifold support bracket to the manifold. (See
important note below and concerning insulator
block.)
3- 1957-’85 Sportster® models and 1966-’82 shovelhead
big twins - Bolt carb and insulator block to intake
manifold using two 3⁄8"-16 x 11⁄4 socket head cap
screws provided in kit.(O-ring side of block faces
manifold(See important note below and caution
concerning insulator block.)
4- 1983-84 shovelhead big twins - Bolt carb and
insulator block to intake manifold, (O-ring side of
block faces manifold) These kits include one 3⁄8"-16 x
11⁄4" socket cap screw and one 3⁄8"-16 x 13⁄8" socket
cap screw. Use the longer screw the bottom manifold
bolt hole to secure the adjustable crankcase-to-
manifold support bracket to the manifold. (See
important note below and caution concerning
insulator block.)
NOTE: If insulator block is not installed, manifold bolts supplied in kit
will be too long and may bottom in holes. Shorter manifold bolts
must be used if insulator block is not installed.
If insulator block is not installed, lower manifold bolt may
damage carburetor bowl causing possible gasoline leak.
Gasoline is extremely flammable and explosive under certain
conditions. Do not smoke around gasoline. Gasoline fumes
are toxic when inhaled. Any gasoline leak or spill constitutes a
health and fire hazard.
D- Adjust throttle cables
1- Turn threaded throttle cable adjusters to remove
excessive freeplay.
2- Test throttle to insure that it opens and closes freely.
Turn handlebars to extreme left and open and close
throttle, then turn bars to extreme right and open
and close throttle. If throttle binds, loosen cable
adjusters to put more freeplay in cables. Tighten
adjusting screw locknuts after making final
adjustments.
NOTE: Throttle must not bind and must snap shut to fully closed
position when released.
If throttle does not return to fully closed position when
released, it may inadvertently stick open, causing possible
loss of control of motorcycle and personal injury to operator
or others.
E- Slip fuel overflow hose onto fitting on carb bowl and
neatly route behind pushrod tubes. On a big twin model,
hose should go toward back of engine. On Harley-
Davidson® Sportster® models, hose should go toward
front of engine. Exit end of overflow hose must extend
down below engine and away from exhaust pipes. See
Pictures 10 and 11
Picture 10
Picture 11
Overflow hose must not contact hot surface such as exhaust
pipe where it could melt and catch fire.
F- Slip hose clamp over end of fuel line. Apply thin coat of
oil to carb fuel inlet fitting and slip end of fuel line on
fitting. Position fuel line in such a way as to avoid contact
with cylinders and other hot engine parts. Tighten hose
clamp. Slip protective fuel line covering over fuel line and
position where contact with engine parts could occur. On
models equipped with fuel line support guide, use guide
if possible. Connect other end of fuel line to gas tank
petcock using hose clamp provided.
Fuel line must be clamped securely and not contact hot
surfaces such as exhaust pipes where it could melt and catch
fire.