Shimming the Jet Needle of CV Carburetor For More Power: Suzuki Intruder 1500

Is your bike hesitating at mid-throttle, running lean, or popping on acceleration? 🔧 Before you swap jets or buy expensive tuning kits, you might only need one simple adjustment — shimming the needle in your CV carburetor. In this video, I walk you through how to shim the needle jet on a CV carburetor to fine-tune your air/fuel mixture and improve throttle response. This is one of the most effective and affordable carb tuning tricks for motorcycles, ATVs, and even some snowmobiles running constant velocity (CV) carbs. You’ll learn: • How a CV carburetor works and what the needle jet controls • Symptoms of a lean midrange condition (surging, hesitation, flat spots) • When shimming the needle makes sense vs. changing jet sizes • Step-by-step removal of the carb top, slide, and needle • Proper washer thickness and placement for safe tuning • How shimming affects mid-throttle fuel delivery • Test riding and reading performance changes correctly This guide is perfect if you’re searching for: “CV carb needle adjustment,” “how to fix lean midrange motorcycle,” “carburetor tuning DIY,” or “improve throttle response without rejetting.” Whether you ride a cruiser, sportbike, dirt bike, or older carbureted machine, understanding needle height adjustment can transform how your engine pulls through the midrange. Small changes = big performance gains. If you enjoy practical DIY repair content for motorcycles, snowmobiles, and automotive builds: 👉 Hit LIKE if this helped 👉 SUBSCRIBE for more carb tuning, clutch repair, drivetrain rebuilds, and shop tips 👉 Comment below with your bike model and what symptoms you're chasing Let’s dial it in and get your machine running crisp. 🔥 Hashtags #CarbTuning #CVCARB #MotorcycleRepair #NeedleShim #DIYMechanic #ThrottleResponse #GarageBuild Check out my other motorcycle videos: Suzuki Intruder 1500 not starting    • Starting Problem Fixed Suzuki Intruder 1500 ✔   Adjusting the primary jet screws    • Expose Carbs to Adjust the pilot jets - 19...   DISCLAIMER: The content presented in this video and on this page/platform, including all information, demonstrations, opinions, comments, and materials, is provided for general informational and entertainment purposes only. Mark Young makes no representations or warranties of any kind, express or implied, regarding the accuracy, completeness, reliability, suitability, or availability of the information contained in this video or associated page/platform. Any reliance you place on such information is strictly at your own risk. Under no circumstances shall Mark Young be held liable for any direct, indirect, incidental, consequential, special, or punitive damages, or any loss or damage of any kind, including but not limited to personal injury, property damage, financial loss, or other damages arising out of or related to the use of, misuse of, interpretation of, or reliance upon any information, demonstrations, comments, or materials presented in this video or on this page/platform. This limitation applies whether such content is provided by Mark Young or by any third party through comments, sharing, embedding, or redistribution. The content in this video and on this page/platform does not constitute professional, mechanical, technical, legal, financial, or safety advice. Viewers should always seek the advice of qualified professionals before attempting any procedures, repairs, modifications, or actions discussed or implied in this content. Any actions taken based on the information provided are performed solely at the viewer’s own risk. Proper safety procedures, protective equipment, tools, training, and working conditions should always be used. It is the sole responsibility of the viewer to determine the appropriate safety measures necessary to protect themselves, others, and property. Mark Young assumes no responsibility for errors, omissions, outdated information, or for the results obtained from the use of the information provided. The information in this video and on this page/platform may be modified, updated, or removed at any time without notice, and there is no obligation to update previously published content. This disclaimer extends to all affiliated pages, channels, platforms, social media accounts, and any third parties associated with or sharing this content.