FCR 40mm Carburetor Carb for Honda CRF450R 2002-2008 CRF450X 2005-2017 ATV

FCR 40mm Carburetor for Honda CRF450R and CRF450X

The FCR 40mm carburetor is a direct-fit replacement carb for Honda CRF450R and CRF450X models, delivering precise fuel metering for consistent throttle response.

Overview

This FCR 40mm carburetor serves as a replacement fuel delivery component for Honda CRF450R and CRF450X machines. The 40mm bore carburetor restores reliable air-fuel mixing for riders who demand predictable power delivery. It is suited to owners performing a rebuild, refresh, or routine replacement on their CRF450R or CRF450X carburetor system.

Built For Performance

• 40mm bore sizing matched to the CRF450R and CRF450X intake tract
• Flat slide FCR design for smooth, linear throttle response
• Accelerator pump circuit for crisp off-idle pickup
• Adjustable jetting provisions for tuning to altitude and temperature
• Durable cast body construction built to withstand off-road vibration

Fits These Machines

• for Honda CRF450R 2002-2008
• for Honda CRF450X 2005-2017

On-The-Job Use

• Motocross track riding on the CRF450R
• Trail and enduro riding on the CRF450X
• ATV applications running the same 40mm FCR carburetor pattern
• Rebuild and refresh projects on older CRF450 machines

Specs At A Glance

Good To Know

Q: Will this carburetor need jetting changes after installation? A: Jetting requirements vary with altitude, temperature, and engine modifications, so expect to fine-tune the carburetor after fitting it to your machine.

Q: Is this an original Honda part? A: This is an aftermarket carburetor built to fit Honda CRF450R and CRF450X models, not an original equipment Honda component.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.