Keihin FCR MX Dirt Bike Carburetor
This is the newest version (#3) of the Keihin FCR Carb which offers many fine-tuning options along with many updates and performance upgrades, allowing this carb to perform best in any situation. This is a rebuilt option (pink hose pics) click our new option above for a new in box then upgraded by us assembly.
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The Difference between this Carb upgrade and other OEM or Aftermarket Dirt Bike options.
- Advanced TPS sensor (ready to plug into the wiring harness.)
- New adaptor boots (for easy install, and runs the bike’s throttle cover to keep dirt particles out.)
- Tuned for each order (please include in the order notes page: elevation, bike mods, mileage, and riding style.)
- Upgraded Baffled float bowl (allowing fuel to flow in any angle that the bike is leaned: whips, wheelies, off-roading, etc.)
- Correct needle (allows for a smooth power band and the ability to pull endos without stalling the engine.)
- Black Neoprene Genuine Keihin hoses (these remain functional 3 times longer than the Keihin OEM Pink hoses.)
- Note: These carbs are set to order! Tuned carburetors do not require constant jetting unless there is a +/-3000ft change in elevation, but even then a simple adjustment of the fuel-air screw and idle can maintain a properly running engine.
- “No need to sacrifice power for the worry of jets“
- The product photo is for reference only, the part you receive will be specific to the make and model of your bike
This carb was designed in Japan specifically for a 4-stroke motorcycle!
Two-stroke carbs (such as Lectron and Smart Carb) work well on all engines! The problem is, 4-strokes take twice as long to produce a “power stroke”, where both the TPS and Accelerator Pump Preload the Spark timing and fuel before the engine has to produce the vacuum needed to get a two-stroke style carb operational.
This video shows a completely stock DRZ400 with only exhaust and this carb upgrade. The conjunction of these two products working together will produce over 25% more horsepower and a 29% increase on the torque curve.
We also have a “Two-stroke style option” for a more economical modification.
Below is what will be included with this Dirt Bike Carburetor when all upgrade option buttons are selected above:
- Main & Mid Body
- Float Bowl
- Throttle Slide
- Roller Plate
- Throttle Position Sensor
- Throttle Connector & Spring
- Fuel Inlet Valve
- Accelerator Pump Upgrades
- Tuning and Jets set for each order
- Needle & Seat Valve
- Hot-Start & Choke Knob
- Fuel/Airscrew Billet Adjuster Upgrade
- Easy Idle Adjust Knob
- Complete OEM installation of Keihin Gaskets
Free Shipping
Free shipping
within the continental US.
Product Options
Upgrades and/or product condition options are available for this part.
30-Day Guarantee!
No need for returns when compatibility and product quality is covered.
On the checkout page, we require the exact year and model to ensure a perfect fit.
Please include your exact bike year, model and sub-model (along with any questions/comments) when checking out as we have multiple variations available.
Aaron C. (verified owner) –
Very helpful. There was a slight issue with the fuel intake swivel, but they were eager and happy to help resolve the problem
Lindsay –
thanks for the help! way better price and starting than the stock dealer carb! saved $200 over dealer quoted price.
Casey M (store manager) –
Purchased because the part was the cheapest, im back because of the performance and ease of a biz to deal with. thanks, NOZ motorsports AZ