Bihr TOURMAX Mixture Screw for Keihin FCR Universal CarburettorRef : BI01621A / 1009712

TOURMAX mixture screw for Keihin FCR carburetor (Manufacturer's ref: L35-731) — A replacement part designed for fine-tuning the carburation on Keihin FCR bodies. Intended for riders who want to maintain precise engine response at idle and low RPMs, this screw allows for adjusting the air/fuel mixture to achieve consistent combustion after maintenance or wear.

• Brand: BIHR
• Category: Carburetor
• Usage: mixture screw for Keihin FCR carburetors
• Reference: L35-731

The mixture screw is the basic tool for refining carburation: it affects the mixture at idle and low RPMs, influencing starting, engine smoothness, and throttle response. An essential replacement part when disassembling the carburetor or adjusting after installing jets, it is easy to install and allows for a clear and repeatable adjustment range.

Before replacement, check the condition of the seat and the sealing washer in the FCR body to ensure effective adjustment. For any carburation maintenance, prefer a step-by-step adjustment and test the engine response under real conditions to properly adjust the mixture.