Description
Product Overview
The Yamaha Motor Carburetor Accelerator Pump 43DE43040000 is engineered to match the exact specifications of original equipment, providing consistent fuel metering for smooth throttle response. Constructed from high‑grade metal alloys, the pump resists corrosion and wear, ensuring long‑term durability even under demanding riding conditions. Weighing only 0.01 ounces, its compact design integrates effortlessly into the carburetor assembly without requiring modifications.
Usage
This accelerator pump is ideal for a wide range of Yamaha motorcycles, from sport models to cruisers, where precise fuel delivery is critical for performance. Install it during routine maintenance or when replacing a worn pump to restore optimal acceleration. Suitable for both street riding and track use, the part supports reliable engine response in varied environments.

Why Choose Us
Choosing this genuine Yamaha component guarantees compatibility and adherence to factory standards, reducing the risk of leaks or misfires. Each unit undergoes rigorous quality testing to ensure it meets OEM tolerances, providing riders with confidence in performance and safety. Our supply chain sources directly from Yamaha, eliminating counterfeit risks.
Key Features
- Exact OEM fit for Yamaha motorcycles – no modifications needed
- High‑grade metal construction for corrosion resistance
- Lightweight design minimizes added mass
- Ensures precise fuel metering for smooth acceleration
- Easy bolt‑on installation with standard tools
FAQ
Is this pump compatible with all Yamaha models?
The 43DE43040000 pump fits Yamaha motorcycles that use this specific part number. Check your bike’s service manual or existing part number to confirm compatibility.
Can I install the pump myself?
Yes, the pump is designed for bolt‑on installation using standard tools. Detailed instructions are included in Yamaha service guides.
What warranty does this product have?
All genuine Yamaha parts come with a limited manufacturer warranty covering defects in materials and workmanship.
How does this pump improve engine performance?
By delivering a precise burst of fuel during throttle opening, the pump enhances throttle response and reduces hesitation, resulting in smoother acceleration.
Is the pump resistant to fuel additives?
The high‑grade metal construction is formulated to withstand common fuel additives, ensuring reliable operation over the pump’s service life.







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