Aggressive Style and Power: S&S Black Super G Kit for Twin Cam 88-103

When you are building a high-performance 1999–2006 Harley-Davidson Twin Cam, fuel delivery is the heart of the project. The S&S Cycle Black Super G Carburetor Kit (Part #110-0099) is designed for the rider who demands maximum airflow and a modern, “murdered-out” aesthetic. While the legendary Super E is the go-to for stock engines, the Super G is the “big bore” choice, featuring a massive 2-1/16″ (52.3mm) throat. This kit is specifically calibrated for Twin Cam engines that have been modified with high-flow heads, aggressive cams, or big-bore cylinders totaling 100 cubic inches or more. By providing a significant increase in CFM over stock units, the Super G ensures that your engine never runs out of breath at the top of the RPM range, delivering the raw horsepower that performance enthusiasts crave.

The Super G “Shorty” Advantage and Black Finish

This version of the Super G stands out with its durable black powder-coat finish, making it the perfect centerpiece for a custom engine build where chrome just won’t cut it. Beyond the looks, it maintains the classic “Shorty” architecture, which is 1-1/8″ shorter than vintage carburetors. This compact design allows the intake to sit closer to the heads for higher air velocity while providing much-needed leg clearance on Softail, Dyna, and Touring frames. Unlike the factory CV carburetor, the Super G uses a mechanical butterfly throttle. This creates a direct, physical connection between your wrist and the engine. When you crack the throttle, the response is instantaneous and visceral, providing the legendary “snap” and acceleration that has made S&S Cycle an industry leader for over six decades.

Complete Performance Intake System for Twin Cam Models

The 110-0099 kit is a comprehensive, all-in-one solution that takes the guesswork out of upgrading your Twin Cam fuel system. Every component is engineered to work in harmony with the increased airflow requirements of a performance-built 1450cc or 1550cc engine.

• Black Super G Carburetor: Pre-jetted to provide a solid baseline for modified Twin Cam engines, reducing initial tuning time.
• Matched Intake Manifold: A high-flow cast manifold designed to maintain air velocity and provide an airtight seal on Twin Cam heads.
• Black Teardrop Air Cleaner: The iconic S&S teardrop cover in a sleek black finish, aerodynamically designed to reduce intake turbulence.
• Adjustable Accelerator Pump: Allows you to customize the fuel delivery to eliminate off-idle hesitation, even on high-compression builds.

Engineered for Reliability and Precision Tuning

The S&S Super G is built to handle the rigors of the modern road and the chemistry of modern fuels. Every kit is manufactured using high-grade, ethanol-resistant components to ensure that gaskets and O-rings won’t degrade under the influence of pump gasoline additives. The carburetor also features an integrated enrichment device for easy cold starts, keeping the handlebars clean by removing the need for a traditional choke cable. Whether you are running a 95-inch Big Bore or a 103-inch stroker, the Super G offers the tunability needed to achieve a rock-solid idle and smooth power delivery across the entire powerband. Choosing S&S means choosing a legacy of American-made quality and racing performance. Transform your Twin Cam into a high-speed powerhouse with the aggressive look and unmatched flow of the Black Super G.

Genuine Maintenance: S&S Cycle Basic Rebuild Kit for Super E & G

Every performance carburetor requires periodic maintenance to ensure it continues to deliver the precise air-fuel mixture your V-Twin engine demands. The S&S Cycle Basic Rebuild Kit (Part #11-2924) is the factory-authorized solution for maintaining the 1-7/8″ Super E and the 2-1/16″ Super G “Shorty” carburetors. Unlike generic aftermarket alternatives, this kit is produced by S&S Cycle to the exact tolerances of the original equipment. It is designed for the rider who isn’t necessarily looking for a complete hardware overhaul but needs to address common wear items that cause vacuum leaks, fuel weeping, or inconsistent idling. By using genuine S&S parts, you are guaranteeing that your fuel system remains as reliable as the day it was first installed on your Sportster, Evolution, or Twin Cam motorcycle.

Superior Sealing Against Modern Fuel Challenges

The primary enemy of any vintage-style fuel system is the ethanol found in modern pump gasoline. Ethanol is notoriously corrosive to older rubber compounds, causing them to swell, shrink, or become brittle over time. S&S Cycle has engineered the components in this basic rebuild kit using premium, ethanol-resistant elastomers. These high-grade O-rings and gaskets are specifically formulated to withstand the harsh chemical environment of today’s fuels, ensuring a long-lasting seal that won’t fail prematurely. Whether you are performing a seasonal tune-up or reviving a bike that has been in storage, these gaskets provide the critical airtight interface between the carburetor body and the atmosphere, which is essential for maintaining a steady “potato-potato” idle and crisp acceleration.

What is Included in the 11-2924 Basic Kit?

This kit focuses on the “soft” components that typically require the most frequent replacement. It is a streamlined package that targets the essential seal points of the Super E and G architecture.

• Body and Bowl Gaskets: Precision-cut gaskets that ensure a perfect seal between the carburetor body and the fuel bowl, preventing messy external leaks.
• Accelerator Pump Bellows: A fresh, flexible rubber bellows that protects the accelerator pump circuit and ensures smooth mechanical operation.
• Full O-Ring Set: Includes all necessary O-rings for the idle mixture screw, enrichment device, and fuel inlet, eliminating potential vacuum leaks.
• Versatile Fitment: One kit covers both the Super E and the Super G models, making it an essential item for any Harley owner’s toolbox.

Reliable Performance Restoration: Milwaukee Twins Super E Rebuild Kit

The S&S Super E “Shorty” is arguably the most popular performance carburetor in the history of the American V-Twin. Its mechanical simplicity and aggressive power delivery make it a favorite for Sportster and Big Twin riders alike. However, even a legendary carburetor requires periodic maintenance to stay at peak performance. The Milwaukee Twins Rebuild Kit for S&S Super E Carburetors is specifically designed to address the common wear points that lead to tuning headaches. If your bike is suffering from inconsistent idling, fuel weeping around the bowl, or a “lean pop” during acceleration, it is likely that your internal seals have reached the end of their service life. This kit provides a cost-effective, professional-grade solution to refresh your fuel system and get your Harley back on the road with total confidence.

Engineered for Modern Ethanol-Blended Fuels

One of the biggest challenges facing classic and aftermarket carburetors today is the chemical composition of modern pump gas. Ethanol additives are notorious for attacking traditional rubber components, causing them to swell, crack, or dissolve over time. Milwaukee Twins has engineered this rebuild kit using advanced, fuel-resistant elastomers. These high-grade O-rings and gaskets are designed to maintain their shape and sealing integrity even when exposed to high concentrations of ethanol. By upgrading to these modern materials, you are not just repairing your carburetor; you are “future-proofing” it against the corrosive nature of today’s fuels, ensuring that your Evolution, Shovelhead, or Twin Cam runs smoothly for years to come.

Comprehensive Maintenance for the “Shorty” Carburetor

This kit focuses on the most critical sealing areas of the Super E body to ensure an airtight intake and a leak-free fuel bowl. Rather than buying individual pieces, this kit provides a coordinated set of components that work together to restore factory-level vacuum and fuel pressure.

• Precision Gasket Set: Includes a high-density bowl gasket designed to prevent fuel seepage and external leaks.
• Complete O-Ring Assortment: Every critical seal for the idle mixture screw, enrichment device, and accelerator pump circuit is included.
• Accelerator Pump Diaphragm: A fresh, flexible diaphragm restores the instantaneous “shot” of fuel required to eliminate off-idle hesitation.
• Durable Hardware: Includes the essential springs and fasteners that often become corroded or fatigued over time.

Why Choose Milwaukee Twins for Your Fuel System?

Choosing the Milwaukee Twins Rebuild Kit means you are selecting parts that are built by riders, for riders. We understand that downtime in the garage is time away from the highway, so we ensure our kits are comprehensive and easy to install. Rebuilding an S&S Super E is a straightforward process that can be completed with basic hand tools, and this kit ensures you won’t be stopped by a missing or poorly fitting seal. Once installed, you will enjoy a more stable “potato-potato” idle, crisper throttle response, and the peace of mind that comes with a perfectly sealed intake. Don’t let a simple vacuum leak or a stiff diaphragm compromise your ride quality. Restore your S&S Super E to its former glory with the precision and reliability of Milwaukee Twins. It is the smartest investment you can make for your bike’s fuel system today.

Complete Fuel System Restoration: Milwaukee Twins S&S Super A & B Master Kit

The S&S Super A and Super B carburetors are icons of the early V-Twin performance scene, known for their simplistic design and raw power delivery. However, decades of heat and exposure to modern chemical additives can cause internal seals to fail and mechanical components to wear. The Milwaukee Twins Master Rebuild Kit is a professional-grade solution designed to bring these legendary carburetors back to factory specifications. Whether you are dealing with a persistent fuel leak, a hanging idle, or poor throttle response, this “Master” level kit provides every critical part needed for a total bench-top overhaul. By replacing your aging internal components, you ensure that your Shovelhead, Ironhead, or Panhead continues to receive the precise fuel metering required for optimal performance and reliability.

Engineered for Modern Ethanol Fuel Challenges

One of the primary causes of carburetor failure in vintage motorcycles is the degradation of rubber components due to ethanol-blended gasoline. Standard older gaskets often swell or dissolve when exposed to modern pump gas, leading to clogged jets and vacuum leaks. Milwaukee Twins addresses this issue by utilizing high-grade, ethanol-resistant elastomers for all O-rings and gaskets included in this kit. This modern material science ensures that your rebuild stands the test of time, maintaining its structural integrity far longer than generic replacement parts. By choosing a kit specifically designed for today’s fuel environment, you are protecting your investment and ensuring your classic Harley-Davidson stays on the road rather than on the lift.

Comprehensive “Master” Level Component List

Unlike basic “freshen-up” kits that only include a bowl gasket, the Milwaukee Twins Master Kit is a complete hardware and seal solution. It targets the most common failure points within the Super A and B architectures to ensure a successful one-time repair.

• Full Gasket Set: Includes precision-cut body gaskets and bowl seals for an airtight assembly.
• Needle and Seat Assembly: Features a high-quality viton-tipped needle to prevent fuel overflow and flooding.
• Precision O-Rings: Every seal for the idle mixture screw and enrichment device is included to prevent air leaks.
• Hardware and Springs: Includes new springs and fasteners to replace rusted or fatigued original equipment.

Why Choose Milwaukee Twins for Your Classic Rebuild?

Choosing the Milwaukee Twins Master Rebuild Kit means you are prioritizing quality and completeness. We understand that when you pull a carburetor apart, the last thing you want is to be missing a small, specialized seal. This kit is curated to remove the guesswork, providing a “one-and-done” solution for the S&S Super A and B platforms. Once installed, you will notice an immediate improvement in starting ease, idle consistency, and smoothness across the RPM range. It is the most cost-effective way to preserve the classic mechanical soul of your bike while benefiting from modern sealing technology. Don’t let a tired carburetor ruin your ride; restore your S&S unit with a kit that is built to perform. Trust Milwaukee Twins to provide the precision parts your vintage V-Twin deserves.

Milwaukee Twins Master Rebuild Kit For S&S Super A & B Carbs

Stop messing around with a sluggish carburetor; this Master Rebuild Kit is the solution for your S&S Super A or B. It includes every component you need to completely overhaul your carb. Install this kit and restore the flawless, powerful fuel delivery your engine was designed for. Formerly offered under the J&P Cycles brand.

Features:

• Kit Includes:
  • Throttle Shaft, plate, return spring
  • O-ring
  • Bowl Gasket
  • 2 Throttle Plate Screws
  • 2 Throttle Shaft Bushings
  • Idle Mixture Screw and screw spring
  • Late Style Needles
  • Needle Seat
  • Float Retaining Pin
  • 4 Bowl Screws
  • 3 Air Cleaner Backing Plate Screws and 3 Cover Screws
  • 4 Screws for the Throttle Arm

Unleash the Beast: S&S Super E Kit for 1991-2003 Sportster Evolution

For many riders, the 1991–2003 Sportster represents the golden era of the mechanical XL. However, the factory vacuum-operated CV carburetor often leaves these nimble bikes feeling sluggish and restricted. The S&S Super E Carburetor Kit (Part #11-0409) is the definitive solution to unlock the raw power hidden within your 883 or 1200 Evolution engine. Known worldwide as the “Shorty,” the Super E features a compact 1-7/8″ bore that provides a high-velocity air path directly into the cylinders. By replacing the stock fuel system with this mechanical butterfly-style carburetor, you eliminate throttle lag and gain the aggressive acceleration that makes a Sportster truly exciting to ride. Whether you are navigating tight city streets or hitting the open highway, the Super E provides a visceral connection between your right hand and the rear tire.

Mechanical Throttle Precision and Performance Engineering

The hallmark of the S&S Super E is its simplicity and efficiency. Unlike the stock carburetor, which relies on engine vacuum to lift a slide, the Super E utilizes a mechanical butterfly throttle. This provides an instantaneous response; when you twist the grip, the engine reacts without hesitation. The “Shorty” design is also 1-1/8″ shorter than vintage performance carburetors, ensuring that the high-flow intake sits closer to the engine for better leg clearance—a critical factor on the narrow Sportster chassis. This kit is specifically calibrated for the five-speed Evolution Sportster, ensuring that the fuel curves match the airflow characteristics of the 883 and 1200 heads perfectly. It is the gold standard for riders who want more “snap” from their XL.

Complete Bolt-On Kit for 1991-2003 XL Models

The 11-0409 kit is a total performance package, removing the guesswork from your fuel system upgrade. S&S Cycle has included everything required to transform your bike’s intake in a single afternoon.

• Pre-Jetted Super E Carburetor: Set up for a standard Sportster engine to provide a smooth, reliable baseline for tuning.
• S&S Intake Manifold: A high-performance manifold designed for a perfect seal and maximum intake velocity on Evo heads.
• Classic Teardrop Air Cleaner: The legendary chrome S&S teardrop cover, designed to increase airflow while providing a timeless custom look.
• Fully Adjustable Accelerator Pump: Allows you to fine-tune the fuel “shot” to match your specific exhaust and cam setup.

Modern Reliability for the Classic Sportster

Operating a vintage-style performance carburetor shouldn’t mean sacrificing modern convenience. The Super E features an integrated enrichment device that makes cold starts simple, doing away with traditional, cluttery choke cables. To combat the harsh effects of modern pump gas, S&S manufactures these kits with high-grade, ethanol-resistant components. This ensures that your gaskets, O-rings, and diaphragm won’t degrade over time, maintaining a leak-free seal for years of riding. Whether you are restoring a 1995 XLH1200 or building a performance-oriented 2003 Custom, the S&S Super E offers the perfect marriage of old-school mechanical soul and modern engineering reliability. Don’t let a restricted factory carb hold your Sportster back—step up to the power and prestige of S&S Cycle and experience what your XL is truly capable of achieving on the road.

The Powerhouse of Fuel Delivery: S&S Super G “Shorty” Carburetor Kit

When engine displacement crosses the 100-cubic-inch threshold, standard carburetors become a significant bottleneck. The S&S Super G Carburetor Kit (Part #11-0421) is the specialized solution for high-performance Harley-Davidson Evolution and Twin Cam builds that demand massive amounts of air and fuel. With a 2-1/16″ (52.3mm) bore, the Super G is 1/4″ larger than the famous Super E, providing a substantial increase in CFM (cubic feet per minute) flow. This kit is not for the faint of heart; it is designed specifically for modified engines, strokers, and big-bore kits where maximum top-end horsepower is the primary objective. By installing the Super G, you are ensuring that your high-performance V-twin never starves for fuel at wide-open throttle, allowing your engine to reach its full mechanical potential.

Engineered for High-Output Custom V-Twins

The “Shorty” Super G inherits the legendary mechanical design that made S&S Cycle a racing authority. Because it is 1-1/8″ shorter than vintage performance carburetors, it provides a compact fitment that clears large fuel tanks and doesn’t interfere with the rider’s leg. Unlike vacuum-slide carburetors found on stock machines, the Super G utilizes a mechanical butterfly throttle. This creates a direct, instantaneous connection between the rider’s input and the engine’s response. For a large-displacement engine, this means the torque is available immediately, pulling hard from the mid-range all the way to the redline. This kit is the gold standard for pro-street builds, drag racers, and heavy-duty performance baggers that require a fuel system as aggressive as their engine internals.

Comprehensive Performance Kit for Seamless Installation

The 11-0421 kit is a complete intake transformation, curated by S&S engineers to provide a perfectly matched air-fuel path.

• High-Flow Super G Carburetor: Pre-jetted for large-displacement engines to provide a solid baseline for tuning.
• S&S Performance Intake Manifold: Precision-cast to match the increased bore size of the Super G for uninterrupted airflow.
• Chrome Teardrop Air Cleaner: A legendary design that uses a unique directional cone to reduce turbulence and increase air intake velocity.
• Adjustable Accelerator Pump: Allows for custom tuning of the fuel “shot” to eliminate hesitation on high-compression engines.

Advanced Tuning for Precision Riding

Reliability and tunability are at the core of the S&S philosophy. The Super G features an enrichment device that simplifies cold starting, doing away with traditional choke cables and keeping your handlebars looking clean. To ensure longevity on the modern road, S&S manufactures these kits with high-grade, ethanol-resistant seals and gaskets. This prevents the degradation often caused by modern pump fuels. Whether you are running a 103″, 110″, or 124″ crate engine, the Super G offers the adjustment range needed to achieve a crisp idle and smooth power delivery. It is a true performance investment that transforms the riding experience, turning a powerful engine into a refined, high-speed monster. Don’t let a small carb limit your build. Step up to the S&S Super G and experience the raw, unadulterated power that only a 2-1/16″ bore can provide.

The Standard of V-Twin Power: S&S Super E Carburetor Kit for Twin Cam 88

The 1999–2005 era of the Harley-Davidson Twin Cam 88 brought a new level of displacement and heat to the Big Twin family. While the factory constant-velocity (CV) carburetor was reliable, it was never designed for the aggressive performance many riders demand. The S&S Super E Carburetor Kit (Part #11-0440) is the definitive solution to unlock the hidden potential of your 1450cc (88″) Twin Cam engine. By replacing the vacuum-operated stock unit with the legendary “Shorty” Super E, you gain a mechanical, high-velocity fuel delivery system that provides arm-stretching torque and a crisp exhaust note. This is the must-have upgrade for riders who want their carbureted Twin Cam to pull harder and respond faster from every stoplight.

Mechanical Precision and The “Shorty” Advantage

The “Shorty” designation isn’t just a nickname; it refers to the Super E’s compact body, which is 1-1/8″ shorter than vintage performance carburetors. This allows the 1-7/8″ (47.6mm) bore to sit closer to the intake valves, maximizing air velocity and ensuring the air-fuel mixture remains atomized for efficient combustion. Unlike the stock CV carb, which relies on engine vacuum to lift a slide, the Super E features a mechanical butterfly throttle. This provides a physical link between your wrist and the engine. The moment you twist the throttle, the fuel is there. This “snap” and immediate acceleration are what have made S&S Cycle a household name among Harley enthusiasts for over six decades.

A Complete, Performance-Matched Conversion Kit

One of the primary benefits of the 11-0440 kit is that it takes the guesswork out of the performance equation. S&S has engineered every component in this kit to function as a unified system, ensuring a professional-grade fit and finish on your 1999–2005 frame.

• Pre-Jetted Super E Carburetor: Set up specifically for the fuel requirements of the Twin Cam 88 engine, significantly reducing tuning time.
• High-Flow Intake Manifold: A precision-cast manifold designed to eliminate air turbulence and provide a rock-solid mounting surface.
• Chrome Teardrop Air Cleaner: The iconic S&S teardrop cover is more than just a style icon; its unique shape increases airflow while protecting the intake from road debris.
• Integrated Enrichment Device: Simplifies cold starts without the need for a messy, cable-operated choke, keeping your handlebar area clean.

Unmatched Tunability for Custom Builds

Whether you are riding a bone-stock 88-inch Dyna or a Softail with a 95-inch Big Bore kit and performance cams, the Super E is designed to scale with your modifications. It features an adjustable accelerator pump, allowing you to fine-tune the “shot” of fuel to match your engine’s specific needs and eliminate off-idle hesitation. Furthermore, the Super E is built with high-quality, ethanol-resistant components, ensuring that modern pump fuels won’t degrade your gaskets and O-rings over time. This kit is a true “bolt-on” investment that transforms your bike into a long-distance touring machine or a street-shredding cruiser with the turn of a wrench.

Maximum Performance for the Evolution Era: S&S Super E Carburetor Kit

The 1984–1992 era of the Harley-Davidson Evolution Big Twin is legendary for its reliability, but the factory carburetors of the time—the early butterfly style and the initial CV units—often left much to be desired in terms of raw performance. The S&S Super E Carburetor Kit (Part #11-0407) is the industry-standard solution to this problem. Designed specifically for the 1340cc (80″) Evolution engine, this kit replaces the entire fuel delivery system with the world-famous “Shorty” Super E. The results are immediate: easier starting, a more stable idle, and a ferocious increase in mid-range torque and top-end horsepower that brings your Evo to life like never before.

The “Shorty” Advantage: Engineering and Airflow

The Super E is affectionately known as the “Shorty” because its body is 1-1/8″ shorter than the vintage Super B model. This compact design serves two purposes: it fits perfectly between the cylinders on Evolution frames and allows the high-flow air cleaner to sit closer to the engine, providing better leg clearance for the rider. Inside the 1-7/8″ bore, S&S uses a precision-machined butterfly throttle. Unlike vacuum-operated stock carburetors that suffer from “lag,” the Super E provides a direct mechanical link to your wrist. When you twist the throttle, the air and fuel delivery is instantaneous, providing the crisp, aggressive “snap” that S&S is famous for.

Everything You Need in One Comprehensive Kit

One of the reasons the 11-0407 kit is a best-seller is its completeness. S&S takes the guesswork out of the installation by providing a matched system where every component is designed to work together.

• S&S Super E Carburetor: Pre-jetted for the 80″ Evolution engine for a smooth “out-of-the-box” experience.
• S&S Intake Manifold: A high-flow cast manifold that ensures a perfect seal and optimal intake velocity.
• Teardrop Air Cleaner: The iconic chrome S&S teardrop assembly, which not only looks the part but increases airflow by up to 14% over stock.
• Mounting Hardware and Gaskets: Includes all necessary O-rings, seals, and fasteners for a professional, leak-free installation.

Tuning Versatility and Modern Reliability

The S&S Super E is built to handle the demands of the modern road. It features a fully adjustable accelerator pump, allowing you to dial in the perfect “shot” of fuel to eliminate off-idle hesitation. The enrichment device simplifies cold starts without the need for a traditional choke cable, cleaning up the look of your handlebars. Additionally, the Super E is manufactured with high-grade components that are resistant to the corrosive effects of modern ethanol-blended fuels. Whether you are running a stock 80″ Evo or one with a Stage 1 cam and exhaust, the Super E is easily tunable to match your specific engine configuration, ensuring your Harley-Davidson runs at peak efficiency at any altitude.

Why Choose S&S for Your Big Twin Evo?

Choosing the S&S Super E Carburetor Kit is an investment in the longevity and soul of your motorcycle. For over 60 years, S&S Cycle has been the leader in V-Twin performance, and the Super E is their crown jewel. By upgrading your 1984–1992 Big Twin, you are choosing to ride a bike that pulls harder, sounds better, and responds exactly when you need it to. Don’t settle for the restricted, sluggish feel of a decades-old factory carb. Experience the legendary power and world-class craftsmanship of S&S. From the city streets to the open highway, your Evolution deserves the best fuel delivery system on the market.

Note: This kit is designed for models using a 2-cable throttle system. 1984–1989 models may require minor cable adjustments or S&S-specific throttle cables for optimal fitment.

The Professional Standard: James Gasket CV Carburetor Rebuild Kit

For nearly two decades, the Keihin CV (Constant Velocity) carburetor was the heart of the Harley-Davidson lineup. From the final years of the Evolution era to the peak of the Twin Cam and the longevity of the Sportster, the CV40 provided reliable, smooth power. However, over time, the internal seals can become brittle, leading to vacuum leaks, “carb farts,” and inconsistent idling. The James Gasket CV Carburetor Rebuild Kit is the premier choice for riders and mechanics looking to restore factory-fresh performance to their 1988–2006 Harley-Davidson. James Gasket has built a reputation on precision, and this kit (replaces OEM #27006-88) provides the high-quality components necessary to ensure your fuel system is airtight and leak-free.

Engineered for Modern Fuel Challenges

One of the biggest threats to vintage and late-model carburetors is modern pump gasoline. The addition of ethanol to today’s fuel can cause standard rubber gaskets to swell, warp, or dissolve over time. James Gasket addresses this by utilizing premium, ethanol-resistant elastomers in their O-rings and diaphragms. This ensures that once you perform your rebuild, your carburetor stays sealed and functional, even if the bike sits during the winter months. This kit is a comprehensive solution, providing more than just a bowl gasket. It includes every critical O-ring and seal required for a complete bench-top teardown of the CV40, allowing you to clean every passage and replace every point of failure.

Comprehensive Component List and Technical Specs

The James Gasket kit is designed for a direct “bolt-in” restoration of the fuel system. It targets the most common wear points that cause tuning headaches and poor throttle response.

• Float Bowl Gasket: Precision-molded for a perfect, leak-free seal between the bowl and the carb body.
• Accelerator Pump Diaphragm: Restores that snappy, off-idle response that is often lost when the original rubber hardens.
• O-Ring Assortment: Includes seals for the idle mixture screw, drain screw, and the manifold interface.
• Compatibility: Fits all 1988–2006 Sportster (883 and 1200) and Big Twin (Evo and Twin Cam 88) models equipped with a factory CV carburetor.

Installation Tips for Success

To get the best results from your James Gasket Rebuild Kit, we recommend a thorough cleaning of the carburetor body using a dedicated carb cleaner and compressed air. Ensure that all small passages, particularly the idle and intermediate circuits, are free of varnish. When installing the new O-rings, a tiny amount of silicone lubricant can help prevent pinching. Once reassembled, this kit will provide a rock-solid foundation for tuning, helping you achieve a steady idle and smooth acceleration through the entire powerband. Rebuilding your CV40 is one of the most rewarding DIY projects for a Harley owner, and this kit makes it easier than ever.