







PWK38 Carburetor
✅90-Day Warranty
Nibbi Racing is committed to providing high-quality products and ensuring customer satisfaction. As part of this commitment, we offer a 90-day warranty on products purchased directly from our website. This warranty covers manufacturing defects and other issues that may arise under normal use.
The 90-day warranty begins on the date the customer receives the product. During this period, Nibbi Racing will repair or replace any product that is found to be defective in material or workmanship.
✅Delivery & Return
Shipping:
Order Processing: Orders are processed within 1-2 business days.
Shipping: Various shipping options available; standard (12-18 days), expedited (8-12 days).
Tracking provided.
Shipping Rates: Calculated based on destination, method, and weight/size.
International Shipping: Available; customers responsible for customs duties and fees.
Return:
Eligibility: Returns accepted within 30 days of receipt for refund or exchange. Items must be unused, in original packaging, and proof of purchase is required.
Return Process: Contact customer service for Return Authorization (RA) number and instructions.
Return shipping costs are the customer's responsibility unless due to defect or error.
Refunds: Processed within 4-6 business days after receiving the return. Issued to the original payment method.
Exchanges: Contact customer service to arrange. Subject to availability.
✅Trustworthy Payment Method
Nibbi Racing strive to make your shopping experience safe and convenient. We offer a variety of trustworthy payment methods to ensure a safe and seamless shopping experience.
We accept credit card, Master, Visa, Paypal, shopify payment, etc. For any issues or questions regarding payments, please contact our customer service team.
Description
PWK38 Carburetor is designed to improve vehicles performance and achieve excellent results in various off-road races. With a half-moon shaped slide, the throttle response becomes more sensitive. a mid to high speed refueling device is built-in for an aggressive power boost.
Aluminum alloy with anodic oxidation treatment on the surface, which greatly improves the corrosion resistance, wear resistance, insulation, heat resistance and hardness of the carburetor.
The Nibbi Racing PWK carburetor pro version is a perfect solution for improving vehicle performance.
Specifications
- Color: Black
- Material: Aluminum alloy
- Spigot: 46mm OD 38mm ID
- Intake: 63mm OD
- Height: 180mm
- Width: 90mm
- Suitable for 450cc~500cc engines
Including
- PWK38 Carburetor *1
- Main Jet #138*1 #132*1 #130*1
- Pilot Jet #35*1
- Stickers *2
- Instructions *1
- Packaging Box *1



Reliable & Durable
PWK is the upgraded version of the PE carburetor, designed to endure harsh environments while providing precise fuel delivery.


Precise Tuning
Featuring an idle screw and a fuel mixture screw, it allows for precise adjustments based on different motorcycle models, ensuring optimal fuel delivery.


Conquer every ride
Comes with one pilot jet and three main jets, which can be easily swapped out to suit different usage scenarios. These interchangeable jets allow for precise adjustments to fuel delivery, optimizing performance for various conditions.
In The Box

You will get a PWK carburetor of your choice.

Come with 1*pilot jet and 3*main jets

Show riding spirit and surpass limits.

View full product details
Frequently Asked Questions
Find answers to common queries regarding product, installation, services, and more.
Does Nibbi offer installation instructions for products?
Yes, we provide installation instructions for most of our products. If you need further assistance, our support team is available for guidance.
Can I return or exchange my order?
Yes, we accept returns and exchanges within 30 days. The product must be unused and in its original packaging. For more details, please refer to our "Refund Policy" page.
What should I do if my product arrives damaged?
If your product arrives damaged, please contact our customer service team immediately. We’ll guide you through the return or replacement process. Make sure to provide clear photos of the damage for a quicker resolution.
What is the warranty policy for Nibbi products?
We offer 90-day warranty on all of our products, covering manufacturing defects. The warranty does not cover damage from misuse, accidents, or wear and tear. For warranty claims, please contact our customer service team with proof of purchase.
Does Nibbi offer any discounts or promotions?
We offer periodic promotions and discounts throughout the year. Subscribe to our newsletter or follow us on Instagram #nibbiracing for the latest offers and updates.
How do I contact customer support?
You can reach our customer support team via the contact form on our website, email us at help@nibbiracing.com, or call us at our customer service number +1 (510)230-7223.
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