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 8)

8
applicable.
G- Check fuel overflow hose routing. Avoid hot surfaces.
H- Test throttle to be sure it opens and closes freely. Turn
handlebars to extreme left and open and close throttle,
then turn bars to extreme right and check throttle. When
released, throttle should snap closed in all positions.
I- Reassemble components that were removed or
disassembled for carb installation. Consult authorized
Harley-Davidson® service manual for installation
procedure for stock parts not covered in S&S® carb
instructions.
J- Check fuel needle and seat assembly. Fill gas tank with
just enough fuel to test system. Lean motorcycle over
towards carburetor side, turn on fuel petcock, and wait
20 seconds. If gas runs out end of carb or out overflow
hose, turn off petcock and check needle and seat. See
"General Information."
K- Check fuel inlet fitting and fuel line connections for leaks.
Hose clamps must be tight.
NOTE: Fuel needle and seat assembly must completely shut off fuel
supply to carburetor bowl. Fuel inlet fittings and fuel line connections
must not leak.
Gasoline leaking past inlet needle may flood engine causing
contamination of oil supply and damage to engine.
Any gasoline leak represents a health and fire hazard.
L- Install air cleaner element. Insure that element goes
around outside edge of locating tang at 9 o'clock
position on backplate. Correctly installed element will
remain in place on backplate without support.
M- Apply blue tread locker to the three 3⁄4"-20 x 1"
mounting screws provided, and install air cleaner cover.
N- Fill gas tank.
INSTALLATION NOTES:
• Due to the short installed length of the carb assembly, the
air cleaner cover may contact the gas tank of four-speed
shovelhead chassis with 5-gallon tanks. In such instances
an optional chromed, notched cover that will provide
additional clearance can be ordered. See Picture 15.
Picture
15
• An optional 1" spacer block can be installed between carb
and manifold as an alternative.
• Bowl vent screw should be removed for any all-out racing
application, which includes use of air horn or air cleaner
without filter element. Exposed passage in carb body
maintains equal pressure between float bowl and
atmosphere. See Picture 16.
Picture
13
• On any application where air horn is used instead of air
cleaner, S&S carb mounting bracket must be used to
securely fasten carb to engine. See line drawing on page XX
Improperly mounted carburetor may loosen from engine
resulting in gas or air leaks, poor performance and possible
damage to carburetor or other components.
Any gasoline leak represents a potential health and fire
hazard.
CARB OPERATION