Carb Idle Screw Knob – CB400SF | 16029-MCE-003

This is a 3D printed replacement carb idle screw knob for the CB400SF. After all these years the original can be damaged or missing. Our part is a replica of the original Honda part number 16029-MCE-003. This component is essential for proper tuning of the carburetor. Without this knob, it is nearly impossible to adjust the idle speed of your bike. This results in poor engine performance. With this replacement knob it is easy to find the correct carburetor tuning. Due to the location of this part, the carb idle screw knob is 3D printed in heat-resistant plastic—just like the original—as the knob has to endure engine heat for long periods of time. We note that the original or a similair screw has to be (re)used for this knob.

Not only is this 3D printed part a precise replacement for your motorcycle, but it is also backed by our Lifetime Guarantee, ensuring its quality and superior durability.

Product Details
Make: Honda
Model – Years:
CB400SF Super Four – 1999 to 2004
CB400 Super Four – 2005
CB400S Super Bol D’or – 2005
Partnumber: 16029-MCE-003
Schematic: View original placement on the Honda CB400SF – CMSNL Parts Diagram.
Material: ASA (Acrylonitrile Styrene Acrylate). This material is chosen for its excellent resistance to UV, high temperatures (up to 95°C), and chemicals, making it the engineering standard for high-visibility, exterior motorcycle components.
Color: Black
Surface Finish: Lightly textured, similar to the original plastic parts.
Production Method: Additive Manufacturing (3D Printing), using FDM (Fused Deposition Modeling) technology. Please note: This is a replacement part manufactured by R3print Moto, specifically engineered for compatibility with Honda classic motorcycles. It is an aftermarket component and not an original equipment manufacturer (OEM) part from Honda.

Customization
We understand every build is unique. If you are looking for a personalized touch or a specific modification to this carb idle screw knob for the CB400SF, we can design a custom solution just for you. Get in touch to discuss your project.

Shipping & Availability
This R3print Moto part is made-to-order to ensure the highest quality and a perfect finish. Please allow a production time of 2 – 5 business days.
Shipping times depend on your location and are typically between 3 – 7 business days for Europe and 8 – 15 for UK & North America. Rest of the world 15+ business days.
You will receive a tracking number as soon as your order has shipped.

Returns & Warranty
We stand behind our Re-engineered parts. All purchases from R3print Moto come with a Lifetime Guarantee.

Attribution
Original design credit is provided on our Attribution page.