S&S Super E Carburetor⁚ A Comprehensive Guide
This guide provides a complete overview of the S&S Super E carburetor, covering identification, differences from the Super G, disassembly, reassembly, basic and advanced tuning, troubleshooting, maintenance, parts sourcing, and additional resources. It’s your complete resource for S&S Super E expertise.
Identifying Your S&S Super E Carburetor
Identifying your S&S Super E carburetor is crucial before undertaking any maintenance or repair. The Super E boasts a 1.875″ (47.6mm) bore and a 1.563″ (39.6mm) venturi, although some versions feature a larger 1.662″ (42.2mm) venturi. A key identifying feature is the letter “E” cast into the carburetor body on the throttle linkage side, positioned below the “S&S SUPER” lettering. This casting clearly distinguishes it from the Super G model. Pay close attention to this marking; misidentification can lead to incorrect part selection and tuning issues. Always double-check your carburetor’s specifications against the S&S Cycle manual or online resources to ensure accuracy. Remember, proper identification is the first step towards successful carburetor maintenance and optimal engine performance. Failure to correctly identify your carburetor model could result in incorrect part selection and potentially damage your engine.
S&S Super E vs. Super G⁚ Key Differences and Applications
The S&S Super E and Super G carburetors, while sharing a similar design, cater to different engine sizes and modifications. The Super E, with its 1.875″ (47.6mm) bore and typically 1.563″ (39.6mm) venturi, is ideal for engines with displacements of 111 cubic inches or less, including Harley-Davidson big twins and Sportsters. The Super G, on the other hand, features a larger 2.116″ (52.3mm) bore and a 1.34″ (44.5mm) venturi, making it suitable for modified engines of 74 cubic inches or more. While both can be adapted to various applications, S&S recommends the Super E for smaller, lower-compression engines to ensure optimal performance and fuel efficiency. Choosing the correct carburetor is critical; using a Super G on a smaller engine could result in poor performance, while a Super E on a large, modified engine may struggle to provide adequate fuel delivery. Always refer to the S&S Cycle guidelines to determine the best carburetor for your specific engine setup.
Disassembling the S&S Super E Carburetor⁚ A Step-by-Step Guide
Before beginning disassembly, gather necessary tools and a clean workspace. Begin by removing the float bowl, loosening the drain nut first. Carefully remove the emulsion tube and main jet from the carburetor body. Next, extract the accelerator pump rod, its rubber bellows, and the discharge O-ring. To facilitate access to internal components, rotate the carburetor counter-clockwise approximately 11 degrees and secure it in a vise. Proceed systematically, noting the position and orientation of each part. Take clear photographs or make detailed sketches to assist with reassembly. Remember to use appropriate tools to avoid damaging delicate parts. Handle all components with care; gently clean and inspect each part before proceeding to the next step. Work in a clean, well-lit area to avoid losing or misplacing small parts. Consult the official S&S Super E carburetor manual for detailed instructions and diagrams. Remember, a methodical approach minimizes the risk of errors.
Reassembling the S&S Super E Carburetor⁚ Proper Procedures
Once all parts are cleaned and inspected, begin reassembly using your photographs or sketches as a guide. Carefully install the accelerator pump components, ensuring proper seating and orientation of the rod, bellows, and O-ring. Next, reinsert the emulsion tube and main jet, verifying their correct alignment. Before installing the float bowl, inspect the float mechanism for proper operation. Ensure the float freely moves within its designated range and that there’s no binding or obstruction. Once the float bowl is attached, tighten the drain nut securely, but avoid over-tightening. Double-check all connections and components before reinstalling the carburetor on the engine. Refer to the official S&S Super E carburetor manual for torque specifications and diagrams. Remember, a clean, organized workspace and a methodical approach are crucial for successful reassembly. Take your time, and if unsure about any step, consult your resources for detailed guidance.
Basic Tuning of the S&S Super E Carburetor
Basic tuning involves adjusting the idle mixture screw, idle speed screw, and accelerator pump. Start with the idle mixture screw, typically set 1 1/4 turns out from lightly seated. Adjust this screw for smooth idle quality. Next, adjust the idle speed screw to achieve the desired engine RPM. This will vary depending on your engine specifications. Then, concentrate on the accelerator pump. A correctly adjusted accelerator pump provides a smooth transition from idle to throttle opening, preventing hesitation or stumbling. Adjust the accelerator pump screw, usually two turns counter-clockwise from seated, and then fine-tune for optimum response. Remember, these settings are starting points and might need further adjustment depending on various factors. Monitor your engine for smooth running, appropriate RPM, and proper throttle response. If you encounter difficulties, consult the S&S Super E manual for detailed instructions and troubleshooting advice. These basic adjustments will greatly improve the carburetor’s performance and fuel efficiency.
Advanced Tuning Techniques for the S&S Super E Carburetor
Advanced tuning delves into fine-tuning the air/fuel mixture across the entire RPM range; This often requires specialized tools like a vacuum gauge and an air/fuel ratio meter. Begin by verifying correct jetting for your specific engine setup; consult the S&S Super E manual for jetting charts. Use a vacuum gauge to measure manifold vacuum at idle and under various throttle positions. Low vacuum readings could indicate a lean condition, while high readings could signal a rich mixture. Adjust the idle mixture screw and air bleeds to optimize vacuum levels for smooth running across the entire RPM range. Utilize an air/fuel ratio meter for precise monitoring of the air/fuel mixture. This provides real-time feedback, helping refine the jetting and ensure optimal combustion. Advanced tuning may also include adjusting the accelerator pump squirt duration and timing for improved throttle response and acceleration. Remember to meticulously document each adjustment, noting changes made and their impact on engine performance. This systematic approach will facilitate a smooth tuning process and optimization of your S&S Super E carburetor’s performance.
Troubleshooting Common Issues with the S&S Super E Carburetor
Addressing common S&S Super E carburetor problems often begins with a systematic check of the basics. A rough idle might indicate a vacuum leak, dirty idle mixture screws, or incorrect idle speed adjustment. Check all vacuum lines for cracks or loose connections, clean the idle mixture screws, and ensure the idle speed is correctly set according to specifications. Poor acceleration could stem from a clogged accelerator pump, incorrect accelerator pump adjustment, or lean fuel mixture. Inspect the accelerator pump circuit for blockages. Ensure the accelerator pump is properly adjusted and that the fuel mixture isn’t excessively lean. A sputtering engine might signal issues with the fuel supply, such as a dirty fuel filter, partially clogged jets, or low fuel pressure. Clean or replace the fuel filter and check the fuel system for any obstructions. Examine the main and pilot jets for any clogs, cleaning them thoroughly if necessary. If the problem persists, inspect fuel pressure to ensure adequate fuel delivery to the carburetor. Remember, consulting the S&S Super E carburetor manual will provide detailed troubleshooting guides and diagrams for your specific model.
Maintaining Your S&S Super E Carburetor⁚ Essential Tips
Regular maintenance is key to ensuring optimal performance and longevity of your S&S Super E carburetor. Start with a visual inspection; check for any signs of damage, corrosion, or leaks. Pay close attention to fuel lines, clamps, and the carburetor body itself. Periodically clean the air filter; a dirty air filter restricts airflow and can negatively impact engine performance and fuel efficiency. Clean the carburetor body externally using a carburetor cleaner and a soft brush, taking care not to damage any delicate parts. Inspect and clean the fuel filter regularly to prevent debris from clogging the fuel system. Check and adjust the float level to ensure proper fuel delivery; an incorrectly adjusted float level can lead to flooding or lean conditions. Lubricate throttle linkage and other moving parts with a suitable lubricant to ensure smooth operation. Consider performing a thorough carburetor cleaning and rebuild every 12 months or after a significant amount of engine use. Regular maintenance will not only extend the life of your carburetor but also ensure your motorcycle runs smoothly and efficiently. Remember, always consult your S&S Super E carburetor manual for specific maintenance recommendations and procedures.
Recommended Parts and Accessories for the S&S Super E Carburetor
To maximize the performance and lifespan of your S&S Super E carburetor, consider these recommended parts and accessories. A high-quality air filter is crucial; it protects the carburetor from dirt and debris, ensuring optimal airflow. Invest in a replacement fuel filter; this prevents contaminants from entering the carburetor and causing issues. A carburetor rebuild kit is a wise investment; it contains all the necessary gaskets, O-rings, and other small parts for a complete rebuild. Consider a fuel pressure regulator to maintain consistent fuel pressure. For performance tuning, various jet kits are available to fine-tune the fuel mixture for specific engine modifications or riding conditions. A vacuum gauge is a valuable tool for precise carburetor tuning. A throttle cable and linkage kit will guarantee smooth throttle action, while a choke cable is essential for cold starting. Additionally, specialized tools designed for carburetor work will simplify the process. These include jet holders, screwdriver sets, and specialized cleaning tools. Always source parts from reputable suppliers to ensure quality and compatibility with your S&S Super E carburetor. Regularly checking and replacing these components will contribute to a long-lasting and high-performing fuel system.
Where to Find S&S Super E Carburetor Parts and Manuals
Locating S&S Super E carburetor parts and manuals is straightforward with several reliable avenues. Authorized S&S Cycle distributors are your primary source for genuine parts; they ensure authenticity and compatibility. Their websites often feature online catalogs and ordering systems, offering convenience and a wide selection. Many independent motorcycle parts retailers also stock S&S components, providing alternative options for purchasing parts. These retailers may offer competitive pricing or have specific parts in stock that authorized distributors might not. Online marketplaces are another option, allowing you to compare prices and find parts from various sellers. However, exercise caution and verify the seller’s reputation before purchasing, to avoid counterfeit or inferior parts. For manuals, the S&S Cycle website is a great starting point; they may offer downloadable manuals or links to authorized dealers who can supply printed copies. Online forums and communities dedicated to motorcycles often have members who share links to manuals and repair guides. While these sources are not always official, they can provide valuable supplementary information. Remember to always check the part numbers and specifications carefully to ensure compatibility with your specific carburetor model and engine. Consulting with a qualified mechanic is recommended if you encounter difficulties during the repair or part replacement process.
Resources and Further Reading on S&S Super E Carburetors
Beyond the official S&S Cycle documentation, a wealth of additional resources exists for those seeking deeper understanding or specialized knowledge of the S&S Super E carburetor. Online forums dedicated to motorcycle mechanics and enthusiasts often feature discussions and troubleshooting tips related to the Super E. These platforms provide a valuable space for peer-to-peer learning, where experienced users share their knowledge and insights. Many independent motorcycle repair websites and blogs offer detailed articles, tutorials, and how-to guides focusing on specific aspects of Super E carburetor maintenance and tuning. These resources often cover advanced techniques and troubleshooting strategies not found in the official documentation. YouTube channels specializing in motorcycle repair and maintenance frequently feature videos demonstrating disassembly, reassembly, and tuning procedures for the S&S Super E carburetor. Visual learning aids like these can greatly enhance understanding and provide practical guidance. Remember to cross-reference information from multiple sources and always prioritize reputable sources when seeking technical advice. Always ensure that any modifications or adjustments you make are compatible with your specific engine and motorcycle model. Consulting with an experienced motorcycle mechanic is strongly recommended for complex repairs or modifications.