M6 Nozzle Carburetor 55-150 Main Measuring Hole for Derotto PHBN PHVA

This M6 carburettor nozzle is a practical component for anyone involved in carburettor modification, offering a wide selection of main measuring hole sizes from 55 through to 150. Designed to fit Derotto main jet PHBN and PHVA carburettors, this nozzle enables precise adjustment of the air-fuel mixture, helping to optimise engine performance. Whether you are tuning a motorcycle, scooter, or small engine, this nozzle provides a straightforward method to change jetting without replacing the entire carburettor.

Features and Construction

The nozzle is manufactured as a single M6 threaded jet, with each size clearly marked for easy identification. The range covers all common sizes needed for fine-tuning.

Material and Build

Made from standard carburettor jet material, typically brass or a similar alloy, the nozzle offers reliable fuel flow and resistance to corrosion. The M6 thread ensures a secure fit in compatible carburettors.

Size and Practical Fit

Available in 32 distinct sizes from 55 to 150, including increments such as 58, 60, 62, 65, 68, 72, 75, 78, 80, 82, 85, 88, 90, 92, 95, 98, 100, 102, 105, 108, 110, 112, 115, 120, 125, 130, 135, 140, 145, and 150. Each size is sold individually, so you can select exactly the jetting you need.

Uses and Placement

This nozzle is intended for carburettor tuning applications, particularly for engines using Derotto PHBN or PHVA carburettors.

Event or Professional Use

Ideal for mechanics and tuners who need to adjust fuel delivery for racing, high-performance builds, or altitude changes. The wide size range allows for precise mixture control.

Everyday Home Use

Suitable for hobbyists maintaining or modifying small engines, motorcycles, or scooters at home. A single nozzle can replace a worn or incorrectly sized jet.

Benefits and Buying Value

This product offers a cost-effective way to tune your carburettor without buying multiple parts or complete kits.

Reuse and Low Maintenance

The nozzle is a durable, direct-fit component that can be reused as long as it remains clean and undamaged. It requires no special maintenance beyond standard cleaning during carburettor service.

Why Choose This Product

With a comprehensive size selection and compatibility with common Derotto carburettors, this M6 nozzle provides a simple, no-fuss solution for precise jetting changes. It avoids the guesswork of adapting non-standard parts.