Ultima SHOVELHEAD ENGINES Manual de servicio descargar pdf (Pagina 16)

 G carb using air cleaner assembly without lter element ows approx. 7 CFM (10" test pressure) less than carb with 4" air horn. E carb w/air cleaner

assembly, no lter, ows same as with 4" air horn. S&S recommends using air lter element for all street applications.

 S&S has found that trimming approximately ¾" o 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 lter element to weather and contamination, so lter should be inspected regularly and washed or

replaced as needed.

CARB OPERATION

1. Starting Procedure of Carb Operation

 

       See

Picture 36, below left.



ENRICHMENT DEVICE NOTES:

 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.

 Plunger nut, plunger spring, and plunger, may be removed for cleaning purposes.

 If air cleaner backplate is removed, be sure fast idle lever and enrichment plunger are engaged properly when backplate is reinstalled. See Picture 20.

 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.

 

 

NOTE: When motorcycle is not running, fuel petcock/shuto valve should be turned o to prevent possible leakage should needle and seat not seal

properly.

Gasoline leaking past inlet needle may ood engine causing oil contamination and engine damage.

Gasoline leaking past inlet needle may ood engine and surrounding area creating a potential health and re hazard.

 



 

 

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

WARNING

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