Keihin 78 Idle Universal JetRef : IH00339A / 1106427

KEIHIN 78 Idle Jet — adjustment part for carburetor, made by KEIHIN. Manufacturer reference: N424-26078.

Small but essential, this KEIHIN 78 idle jet is designed for riders concerned about engine behavior at idle. Designed to intervene in the idle circuit of the carburetor, it allows for the calibration of fuel flow at low RPM to achieve a more stable and repeatable idle after maintenance or modification.

• Usage: replacement of a worn jet or calibration change during carburetor tuning.
• Advantage: original KEIHIN part for compatibility and quality that meets manufacturer standards.
• Intervention: simple exchange in the workshop or garage, ideal for fine-tuning after intake/exhaust modifications or altitude changes.

Keep it in your toolbox or spare parts kit, the idle jet is a precision component that directly influences engine stability at rest. If you are adjusting the carburetor, choose suitable parts — like this KEIHIN 78 jet — to achieve a clean and controlled idle on the road as well as in the city.