User guide

3
WARNING
Installation Notes
                  


• Some S&S Engines may be congured to allow crankcase pressure to exit via the crankcase and/or cylinder head vents. S&S 49-State EPA-Certied
Engines must only utilize cylinder head venting.
• The camshaft supplied in S&S 49-State EPA Certied Engines is of proprietary S&S design. This camshaft has been designed to allow the engine to meet
exhaust emission standards. Substitution of a camshaft with dierent specications is not permitted and would be in violation of the Clean Air Act.
• S&S 3⁄” bore engines come equipped with an S&S Super Stock® ignition system that is preset at the factory. Breaking the tamper proof seal will void
the warranty on the engine.
• The Super Stock and IST ignition system requires the use of a 3 OHM single-re coil like the S&S coil PN 55-1571.
• The carburetor supplied with S&S 49-State EPA Certied Engines is not to be adjusted. For service requirements, contact S&S Cycle Technical Services,
608-627-1497. The tuning instructions described in S&S Carburetor Instruction Sheet No. 400 do not apply to carburetors supplied with S&S 49-State
EPA Certied Engines. More specic information can be found in your S&S 49-State EPA Certied Engine Owners manual.
• The carburetors included with 49-State Engines are buttery type carburetors with a preset idle mixture screw and preset midrange and high speed
jets. The carburetors also feature an accelerator pump and variable fast idle device for improved throttle response, engine starting, and warm ups.
The Super E carburetor has a 1⁄" (47.6mm) bore at the buttery and a 1⁄" (39.6mm) venturi. The Super G carburetor has a 2⁄" (52.3mm) bore at the
buttery and a 1¾" (44.5mm) venturi.
Installation Instructions
  


Improper installation of engine or related components could result in injury or death to the operator and/or passenger and damage to
the motorcycle.
Installation
 
 
 
 
 
Picture 1
To determine the
exposed surface area of a circular gasket the following equation would be used:
Exposed Surface Area= a x 3.14 x d
where: a = thickness of the gasket
d = ID of circular opening
To determine the exposed surface area on an o-ring seal the following equation would be used:
Exposed Surface Area= 0.25 x 3.14 x (X2 – Y2)
where: X = ID of circular opening
Y = OD of inset groove for o-ring




