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Idle jet size 48 designed for Keihin carburetors. This replacement part is intended for riders looking to adjust the fuel mixture to fine-tune the air/fuel ratio at idle. Essential during a carburetor overhaul, engine configuration change, or fine-tuning after modifications (exhaust, intake, etc.).
Usage: adjustment of idle and low-speed mixture richness.
Application: intended for carburetors equipped with Keihin jets (check compatibility with your model before installation).
Simple replacement: generally accessible after removing the carburetor bowl — check for sealing and alignment after installation.
Practical advantage: allows for gradual adjustments to stabilize idle and optimize engine response at low speeds.
Before installation, check the part number and the internal condition of the carburetor. For precise tuning, prefer a bench setup or consult a professional if you are unsure about the richness and idle adjustments.
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