Air and Fuel› Carburetors and Components

Mikuni

Performance Carburetor Kit

$200.00

SKU: HSR42

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Mikuni HSR42 is a flat slide carburetor designed for performance applications. This easy kit accepts original Harley-Davidson intake manifolds, choke cables, air cleaners, and throttle cables while retaining a stock look. It increases throttle response, power, and mileage. The kit includes installation instructions and hardware.
Show original supplier description
The Mikuni HSR42 Smoothbore Carburetor Easy Kit is engineered for performance enthusiasts seeking to upgrade their motorcycle's fuel delivery system. This carburetor is known for increasing throttle response, power, and overall mileage. The kit comes pre-jetted and ready to run, including essential hardware and instructions for a complete installation. Included items comprise the carburetor assembly, air cleaner, O-ring, main jets, cable ties, hose clamp, and cable lubricant. Please note that due to Air Resources Board (ARB) regulations, this part cannot be shipped to California. Additionally, this item is subject to manufacturer's advertising policy and is excluded from promotions and discounts.

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.

Fitment

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Specifications

BrandMikuni
Part NumberHSR42
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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