S&S Cycle Super E and G Series Shorty Carburetors - Manual (Page 16)

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G carb using air cleaner assembly without filter element flows approx. 7 CFM (10" test pressure) less than carb with 4" air horn. E carb w/air cleaner
assembly, no filter, flows same as with 4" air horn. S&S recommends using air filter element for all street applications.
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S&S has found that trimming approximately 3⁄4" off rim of S&S air cleaner cover has resulted in as much as 3 HP increase on Dynojet® 150 chassis
dynamometer. However, this increases exposure of filter element to weather and contamination, so filter should be inspected regularly and washed or
replaced as needed.
CARB OPERATION
1. Starting Procedure of Carb Operation
S&S Super E & G carburetors do not have a conventional choke. Instead, a mixture enrichment/fast idle device is used for starting and engine
warm-ups. The enrichment device utilizes separate air and fuel pickup passageways and is engaged by pulling fast idle leve upward. See
Picture 36, below left. Super E & G carburetors also feature a fully adjustable accelerator pump which is actuated by quick throttle movements
at partial throttle openings and can be used as an additional starting aid.
ENRICHMENT DEVICE NOTES:
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Enrichment/fast idle pickup tube located directly below fast idle plunger, is pressed into carburetor body and must not be removed. See Picture 37,
Removal of enrichment/fast idle pickup tube from carburetor body may cause irreversible damage to carburetor.
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Plunger nut, plunger spring, and plunger, may be removed for cleaning purposes.
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If air cleaner backplate is removed, be sure fast idle lever and enrichment plunger are engaged properly when backplate is reinstalled. See Picture 20.
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S&S® enrichment system operates on manifold vacuum. If throttle is opened while starting engine, vacuum will be reduced and enrichment system will
not function normally.
A- Cold Starts
1- Open fuel petcock.
NOTE: When motorcycle is not running, fuel petcock/shutoff valve should be turned off to prevent possible leakage should needle and seat not seal
properly.
Gasoline leaking past inlet needle may flood engine causing oil contamination and engine damage.
Gasoline leaking past inlet needle may flood engine and surrounding area creating a potential health and fire hazard.
2- Prime engine with one or more squirts from accelerator pump. Ambient temperatures below 60° may require increased priming, up to
6-7 squirts depending upon exact temperature and carb jet size.
3- Pull fast idle level, to fully raised position.
4- Turn on ignition.
NOTE: Some engines, especially those equipped with magnetos, will start easier if given two prime kicks BEFORE ignition is turned on. For reliable starting,
magneto should be equipped with kill button to disable ignition for prime kicks.
Picture 36 Picture 37
CAUTION
CAUTION
WARNING