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Keihin Carburetors
Read the carburetor FAQ
Carburetors are not returnable
Cost Enter
Quantity
Merge Racing FCR-MX accelerator pump spring
Direct replacement for the stock spring. 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. From Merge Racing
$14.95
Merge Racing Fuel Mixture Screw
Top quality brass screw with molded knob for easy adjustments. Fits all FCR carburetors.
$22.95
Merge Racing Adjustable leak jet
Eliminates "4-stroke bag" when used with correct jetting. Allows the use of correct carburetor settings to optimize performance, starting and reliability. Adjustable for weather, altitude and riding conditions with just a screwdriver. Billet anodized aluminum housing, Internal check valve. Fits all motorcycles and ATV's, using an FCR carb. Easy installation instructions (including online video) and template
$149.95
'Merge Mod' kit
Adjustable leak jet cover, Fuel mixture screw and Accelerator pump spring all in one kit.
$179.95
R&D Flex Jet NEW!
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, instructions 59-1002
$32.95
Sunline FCR carburetor calibrated fuel mixture screw
Fits OEM FCR Honda, Yamaha, KTM, Suzuki, Kawasaki carburetors.
$19.95
Boyesen QuickShot 3 accelerator pump cover
-Eliminates hesitation and bogging
-Provides instant response to throttle movements
-Reduces hot engine stalling
-Improves low end performance
-Bolt-on product that requires no modification
Keihin FCR 38, 39, 40, 41 and 42mm
CRF150R, CRF450R, CRF250R, CRF250X, CRF450X, TRX450R 06,
KXF450, KXF250, KLX400,
RMZ250, RMZ450, DRZ400,
YZF250, YZF450, YZ400, YZ426, YFZ450 Quad, WR250, WR400, WR426, WR450,
KTM 250/400/450/520/525 with FCR carbs
$109.95
FCR carburetor 'Dial it in' Combo
Boyesen QuickShot 3 plus Sunline mixture screw
$127.95
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