KEIHIN FCR carburetor, 41 mm diameter, with TPS sensor and hot-start choke

Discontinued: This product is no longer manufactured and cannot be ordered. Find other models in the " Carburetor Only for APRILIA 4-stroke" section.

KEIHIN We offer this 41mm-diameter carburetor for your motocross bike. This carburetor is recommended for 4-stroke engines of 450cc and larger. Called the FCR, this is the very latest model developed by the brand to deliver maximum performance at both high and low RPMs. KEIHIN has refined this carburetor in several key areas. It was designed so that the carburetor’s interior allows for better airflow, thereby enhancing the Venturi effect. The float is a flat-bottom design for improved responsiveness of your bike. The valve has been engineered for smoother and more responsive handling. The float chamber features a flat, partitioned design to prevent emulsion issues during jumps or repeated bumps. The float chamber is also equipped with a plug, allowing you to remove the main jet more easily without taking it out of the engine, so you can fine-tune your settings.

The features of this carburetor are:

With hot start

TPS sensor:

Main jet: KEA200

Idle jet: KEP48

Needle: 41-EMR

Outer diameter of pipe-side mounting: 48 mm

This model features a straight float bowl, so it will fit perfectly on your motocross bike. However, it is shipped without a sleeve or air filter adapter. A PDF of the carburetor exploded view is provided below, along with a list of recommended vehicles for installation. However, you can also adapt it to any motorcycle. If you need a replacement part that isn’t available on the website, please send us an email so we can locate it for you. Product photo coming soon.