Prox Main Jet for Keihin Carburetor Size 158

The Prox main jet for Keihin carburetor size 158 is a precision component for anyone looking to optimize the carburetion of their Keihin system. This new part delivers reliable performance and consistent tuning, specially designed for applications that rely on Keihin carburetors.

• Type: Main jet for Keihin carburetors
• Size: 158 (main jet size)
• Material: Brass for durability and good heat conductivity
• Compatibility: Fits Keihin carburetor systems
• Brand: Prox – reliable supplier of high-quality engine parts

With the correct main jet, the fuel delivery can be precisely adjusted for different RPM levels and conditions. A size 158 main jet contributes to a more stable idle, better throttle response, and consistent combustion at mid-to-high RPM. Replacing worn jets with this size helps prevent engine issues such as sputtering, hard starting, or erratic operation, and supports reliable, easy-to-maintain carburetion.