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Air and Fuel› Carburetors and Components

Mikuni

RS Series 34mm Radial Flat Slide Carburetor Set

$1,178.95 $952.41 Save $226.54

SKU: RS34-D21-K

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Mikuni RS34-D21-K is a set of 34mm radial flat slide carburetors designed for in-line 4-cylinder performance motorcycle applications.

These carburetors were developed in response to the demands of top motorcycle road and drag race teams, providing precise fuel metering and high flow volume for modified engines. They feature a smoothbore induction tract and radial flat slide design for superior horsepower gains and include an adjustable accelerator pump system for instant throttle response, especially in lower RPM ranges. The RS series carburetors are compact, 25% lighter than other performance carbs, and use readily available Mikuni jets.
Show original supplier description
The Mikuni RS34-D21-K is a 34mm radial flat slide carburetor assembly engineered for high-performance, in-line four-cylinder motorcycle applications. Developed to meet the rigorous demands of professional road and drag racing, these carburetors deliver precise fuel metering and high flow volumes essential for highly modified engines. The RS series features a superior horsepower-gaining design with a maximum-flowing smoothbore induction tract and a radial flat slide. An integrated adjustable accelerator pump system provides immediate throttle response, particularly in the lower RPM range, enhancing overall rideability. The carburetors are also notably compact and 25% lighter than comparable performance carbs, utilizing widely available Mikuni jets for easy tuning and maintenance. Spigot spacing is 73mm / 93mm / 73mm, and the finish is natural. Specific carb holders are required and available separately. This assembly is specifically designed for a wide range of Kawasaki models from 1973 to 2005, including various Z1, KZ900, KZ1000, and Police models. These carburetors are not universal parts for Japanese, European, or American vehicles.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandMikuni
Part NumberRS34-D21-K
CategoryAir and Fuel
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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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