The CRF line was launched in 2000 as a successor to the Honda XR series. The CRF-R is a liquid-cooled four-stroke engine. They are designed to be utilized purely for closed-course motorcross racing. The CRF-R lineup lacks any extra accessories; like lights and electric start (Although offered as an option on the 2017 CRF-450R).
| Chain Size: | Front Sprocket: | Rear Sprocket: | Front Tire: | Rear Tire: | Spark Plug: |
|---|---|---|---|---|---|
| 420x120 | 15T | 50T | 70/100-17 | 90/100-14 | CR9EH-9 |
Genuine Keihin spring, washer, and oring for the fuel screw of FCR and FCR MX carbs.
Just the parts…
Fuel screw spring, washer, o-ring (fuel screw not included)
This cover acts as an 'adjustable leak jet' to fine tune the accelerator pump squirt.
Eliminates "4-stroke bog" when used with correct jetting. Allows the use of correct carburetor settings to optimize performance, starting and reliability. Improved low-end performance with much better throttle response. Investment cast and finished to precise tolerances with internal high volume vertical check valve. Fits all motorcycles and ATVs using a Keihin FCR carb. Easy installation instructions (including online video) and template.
This cover acts as an 'adjustable leak jet' to fine tune the accelerator pump squirt.
Eliminates "4-stroke bog" when used with correct jetting. Allows the use of correct carburetor settings to optimize performance, starting and reliability. Improved low-end performance with much better throttle response. Investment cast and finished to precise tolerances with internal high volume vertical check valve. Fits all motorcycles and ATVs using a Keihin FCR carburetor Easy installation instructions (including online video) and template.
Not for the stock DR650 carburetor Fits FCR-MX conversions Only.
Direct replacement for the stock spring and exactly like the old Merge Racing spring. Gives a much more consistent accelerator pump squirt. Eliminates the need for the 'O-ring mod', wire or zip-ties on the pump arm. Fits all Keihin FCR-MX carbs except '07-'08 CRF250/450.
Not for the stock DR650 carburetor Fits FCR-MX conversion Only
Buy both and save! Includes the Boyesen QuickShot 3 and Sunline Mixture Screw
Replaces the stock screw. Easy adjustment, without a screwdriver, of fuel mixture while the bike is running. For Keihin FCR carburetors.
Top quality brass screw with molded knob for easy adjustments.
Not for the stock DR650 carburetor Fits FCR-MX conversions Only.
R&D introduces "Flex-Jet", a simple, effective flexible shaft design. Quick adjustments are now within easy reach. Besides easy access, another benefit is the Flex-Jet's ability to hold its setting. Loose fuel screws are now a thing of the past. Kit includes: Flex-Jet (Remote Fuel Screw), bracket, screw, spring, washer, O-ring and instructions.
Not for the stock DR650 carburetor Fits FCR-MX conversions Only.
Sold in 6 packs
Not legal for use on pollution controlled vehicles in the state of California.
Quick release one-piece clamps that saves space. These are great for fuel lines, controlling wires, and can be used many times.
Comes with 4 each of 8mm, 9mm 10mm, and 12mm.
No special tools needed, from Helix Racing.
