KJ108-4 Keihin slotted head main jets 99101-393, size 108

Tuning a Keihin carburetor requires precision, and these EBC slotted head main jets are the professional choice for getting your air-fuel mixture spot on. Produced by A-Bax Precision Engineering, these size 108 jets are a high-quality alternative to the 99101-393 series. They are engineered to fit a broad spectrum of Keihin carbs, including the FCR and FCR-MX performance units, as well as VB, VD, VE, CVK, and CVKR-D models. Sold as a pack of four, they offer the consistency needed for multi-cylinder setups or having spares on the bench. Whether you are working on a custom build or maintaining a classic, these jets provide the accuracy required for smooth throttle response and optimal engine cooling during high-speed operation.