Prox Main Jet for Keihin Carburetor, Size 165

The Prox size 165 main jet for Keihin carburetors is a precision component that accurately regulates fuel delivery. Suitable for experienced mechanics and enthusiastic riders looking to optimize their engine's performance.

• Type: Main jet for Keihin carburetors
• Size: Ø165 — specifically designed for Keihin carburetor setups that require this size
• Material: Brass (bronze-toned material) for durability and reliable performance
• Brand: Prox
• MPN: JU-45.165
• Application: Fits a range of Keihin carburetor models, ideal for tuning the air-fuel ratio

This main jet plays a crucial role in controlling fuel delivery in the mid-to-high RPM range. Choosing the correct size will result in a more consistently running engine with better throttle response, more stable idle, and more efficient fuel consumption. Ideal for racers, hobbyists, and professional technicians who take carburetor tuning seriously and want to precisely adjust what their engine needs for different riding conditions.