
This part being universal, it may require adaptations
The KEIHIN 155 jet is a carburetion part designed for fine-tuning the air-fuel mixture. Whether you are in the workshop or out on the road, this jet allows you to adjust the richness to adapt the throttle response and optimize engine behavior according to chosen parameters (altitude, fuel, setup).
Designed to fit compatible KEIHIN carburetors, it is aimed at demanding motorcyclists and mechanics who work on carburetion: controlling the revs, adjusting the idle, or optimizing the throttle response. Its manufacturer reference (99101-393-1550) makes identification easy during replacement or when searching for spare parts.
Practical points:
Before any modifications, check compatibility with your machine and conduct a real-world test to fine-tune the adjustment. This jet is part of the maintenance routine to achieve clean and responsive carburetion.