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Mikuni Smoothbore HSR 45 Carburetor for Custom Installations


Regular: $438.95 Save 10%! Sale: $395.95

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Specifications and Options

Brand Mikuni
Note: This item is a universal/custom fit component, and is not a direct fitment for your machine. These parts may require modification and we recommend installation by a certified mechanic. Please have machine specifications ready when you call.

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Product Details

Mikuni Smoothbore HSR 45 Carburetor for Custom Installations

The right choice for the performance engine builder needing a carburetor only for specific custom applications. 45mm carb for use on modified engines requiring the maximum in carburetion (Manifolds not included)


  • 45mm requires custom manifold
  • HSR42 cables, air cleaner, breather and jets are interchangeable
  • Choke cable is included
  • 84-89 models require 90-95 cables

Specifications and Options

Brand Mikuni

Q & A

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Browse 3 questions Browse 3 questions and 4 answers
How much for two inc. postage to the UK?

Mikuni hsr 45mm
Adee on May 18, 2010
BEST ANSWER: Thanks for your question! We do offer international shipping to the UK, shipping would be $62.07 usd. All orders going International are shipped with UPS International Priority (Air) Service. Our system will automatically tally your shipping costs (including all customs duties & taxes)in US dollars to your address before you complete the checkout process. You will not need to pay any additional fees once you receive your package, as all duties and taxes are paid when you place your order.
Would this fit a 1983 Honda shadow 500 with 750 heads?
Hunter M on Sep 26, 2019
BEST ANSWER: Hunter, thank you for the question. According to our records, this carburetor will require a custom manifold and includes a choke cable. Unfortunately, since it is made for custom applications I will not be able to guarantee you direct fitment. Please let us know if there is anything else we can do for you by contacting us by email at [email protected], Live Chat or by phone toll-free at 1-888-339-3888. We are always more than happy to help.
just wondering if these carbs will fit on my 1991 suzuki gsxr 750
null on Sep 17, 2010
BEST ANSWER: Thanks for your question! Unfortunately we would not be able to confirm if these would work for your machine. There is no fitment chart proivided from the manufacturer for these. You would need to match up your measurements from the machine and the ones listed to see if there is one that fits for you.


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