
This part being universal, it may require adaptations
KEIHIN Main Jet 190 – Manufacturer part number: 99101-357-1900
This replacement part is designed for Keihin carburetors; this main jet No. 190 plays a crucial role in managing fuel flow beyond cruising speed, where the engine demands more fuel. Essential for carburetion and maintenance operations, it allows for the adjustment of the air/fuel mixture to refine throttle response and acceleration.
This jet is replaced by screwing it into the carburetor body and is used during a mixture adjustment, a configuration change (filter, exhaust), or in case of wear. Before any intervention, check compatibility with your carburetor model and follow the manufacturer's recommendations for adjustment. Installation and removal require basic tools and a minimum of two-wheeled mechanical practice.
Compact and specific, this KEIHIN main jet 190 is a simple yet essential part for achieving precise mixture settings and ensuring smooth engine operation.