Prox Main Jet for Keihin Carburetor Size 120

The Prox main jet for Keihin 120 size carburetor is a precision component for motorcycles and scooters with Keihin fuel systems. Designed for skilled mechanics and enthusiastic DIY enthusiasts who value a reliable, accurate air-fuel ratio.

• Main jet size: 120 — precise fuel metering for Keihin carburetors.
• Compatibility: specially designed for Keihin fuel systems, fitting most standard Keihin setups.
• Material: brass construction for durability, corrosion resistance, and consistent performance.
• Installation: easy replacement thanks to standard threading and compact form factor.
• Brand & Quality: Prox is known for reliable, low-maintenance parts with precise tuning for engine performance.
• MPN: KEIH120
• Condition: new product

This 120 size main jet delivers precise fuel delivery, which directly contributes to stable idle behavior, consistent acceleration, and positive response across various riding conditions. Ideal for calibration and maintenance work on Keihin carburetors, where precisely set jet values are essential for optimal combustion and engine response. Thanks to its sturdy brass design, this component offers long-lasting reliability even under demanding operating conditions.