Motorcycle carburetor modification kit for performance tuning, compatible with KR150 KSR and universal models, includes sandblasted PWK carburetor in 21mm, 24mm, 26mm, 28mm, 30mm, 32mm, or 34mm sizes to match engine capacity from 50cc to 350cc
Universal Motorcycle Performance Carburetor Kit for Engine Modification and Tuning

This modification kit provides a straightforward path to adjusting your motorcycle's performance characteristics by upgrading a key component: the carburetor. Designed as a replacement or performance part, it is supplied as a sandblasted PWK model, available in a wide range of seven specific bore sizes. Each size is correlated with a recommended engine capacity, from smaller 50cc engines up to larger 350cc displacements, offering a tailored fit for various projects. The primary stated purpose is to increase exhaust volume and enhance overall motorcycle performance, making it a focused upgrade for enthusiasts looking to modify their bike's fuelling system.
Features and Construction

The core of this kit is a single, prepared carburetor, selected for its role in engine modification. The product information outlines clear, measurable specifications that guide the user's choice and application.
Material and Build
The carburetor is a PWK model that has undergone a sandblasting process. This finish is often applied to clean and prepare metal surfaces, potentially aiding in fuel flow characteristics and providing a uniform base for further tuning or sealing. The construction is centred around this single, key performance component, which forms the basis of the modification.
Size and Practical Fit
The kit's main differentiator is the choice of seven precise bore sizes: 21mm, 24mm, 26mm, 28mm, 30mm, 32mm, and 34mm. Each size is not just a measurement but is paired with explicit engine capacity recommendations. For instance, the 21mm size is suggested for engines from 50cc to 100cc, while the 34mm size is for engines from 250cc to 350cc. This detailed guidance helps ensure you select a component that aligns with your motorcycle's existing engine specifications for a more predictable modification outcome.
Uses and Placement

This product has a defined role within motorcycle maintenance and customisation, targeting specific models and generic applications where carburetor modification is desired.
Event or Professional Use
For tuning shops or experienced individuals working on motorcycle performance builds, this carburetor provides a standardised, sandblasted component ready for installation. The availability of multiple sizes in one product line simplifies sourcing the correct part for different customer bikes or project stages, from small-displacement machines to larger engines.
Everyday Home Use
For the home mechanic looking to modify their own motorcycle, this kit offers a clear upgrade path. The stated compatibility with the KR150 KSR model and its designation as 'universal for carburetor motorcycles' suggests a broad application. The user's task is to match the provided size-to-engine-capacity chart with their bike, then proceed with the carburetor refit or replacement to aim for increased exhaust volume and performance.
Benefits and Buying Value

The value of this modification kit lies in its specificity and the practical data provided to inform the purchase, rather than in vague performance promises.
Reuse and Low Maintenance
As a mechanical replacement part, the carburetor is intended for long-term use within the motorcycle's fuel system. The sandblasted finish may contribute to a clean, consistent surface that is part of the initial setup. Its maintenance would follow standard practices for carburettors, involving periodic cleaning and tuning as part of regular engine upkeep after installation.
Why Choose This Product
This product provides a concrete solution for a concrete need: sourcing a specific PWK carburetor size for a performance modification. Its key advantage is the clear, size-based selection system tied to engine capacity, which helps reduce the risk of ordering an incompatible part. The inclusion of the sandblasting process as a standard preparation step means the component arrives ready for installation, saving a preparatory step for the end user. The total product weight of 0.55 kg gives an indication of its substantial, single-component nature.





