Mikuni American carburetor Division

Mikuni Carburetor Manuals
This page lists our Carburetor Owner's and Tuning Manuals.
Download and read or print these documents by clicking on the titles below.

NOTE: These Manual files are Adobe PDF. When you click on one of the manuals in this list, Adobe Reader will load and proceed to download the chosen manual. This could take some time on slow connections as some of the manuals are rather large. Their size is noted to the right of each manual title.

Harley-Davidson / American V-Twin Applications:
HSR42/45/48 Tuning Manual (3.6 MB) revised 02/10/03
      HSR48 Exploded View - See Product Catalog for Exploded View & Parts List
      HSR42 Exploded View - See Product Catalog for Exploded View & Parts List
HSR Easy Kit Installation Instructions (2.0 MB) revised 01/19/12
Total Kit Installation Instructions (1.7 MB) revised 01/22/02
Sportster/Buell Installation Instructions (1.8 MB) revised 01/23/02
PAT Upgrade Kit Installation Instructions (.4 MB)
HS40 Tuning Manual & Parts List (1.3 MB)


Other Motorcycle Applications:
RS Series Applications & Parts Lists - Use HS40 Tuning Manual /
      See Product Catalog for Exploded View & Parts List
VM "Round Slide" Tuning Manual (1.3 MB)
      TM33 "Pumper" Exploded View & Parts List (.25MB) - See HS40 Tuning Manual /
      See Product Catalog for Exploded View & Parts List

Watercraft Applications:
Super BN Owner's Manual (3.8 MB, large file)
       Super BN 38/44 Exploded View & Parts List (.6MB) - See Product Catalog for Exploded View & Parts List
       BN 46I Exploded View & Parts List (.6MB) - See Product Catalog for Exploded View & Parts List

Mikuni Products Catalog
        PDF DOWNLOAD


Adobe These documents are presented in the Adobe "PDF" format. They can only be read with Adobe Acrobat Reader (version 4 or later). If you do not have this free program, you may go to the Adobe.com site and download it or by clicking the Adobe icon.

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Notes on Carburetor Installation, Tuning
and Repair

Please Note:
Other than exact replacement OEM carburetors, all Mikuni Aftermarket Carburetors and Tuning Components are sold "As Is" for Off Road / Racing Use Only and are not intended or approved for use on vehicles operated on Public Roads or in Locations where applicable engine tampering and antipollution laws apply.

Mikuni Carburetors should be replaced, repaired or tuned by the selling dealer, or a trained or qualified race mechanic.

Mikuni American is not responsible for mechanical damage or personal injury caused by an improperly installed carburetor, operating conditions, or its tuning by the vehicle manufacturer, dealer, any mechanic or private individual.

Design and Tuning for Motocross

Design & Tuning
for Motocross
Revised 2nd Edition

by Jim Gianatsis
The ultimate book on motocross bike history, design and technology, engine and carburetor performance and tuning. Includes many of Jim's classic race photographs from the sport's beginning in the 1960-80s with Brad Lackey, Bob Hannah, Tony D. Roger DeCoster.

This 2nd edition picks up with the current modern 4-stoke motocross bikes since year 2000