Mikuni American Corporation

HSR Home Page: Welcome to our Website This portion of the general Mikuni web presence has been created by the Mikuni American Corp.'s aftermarket carburetor division. We specialize in performance carburetors for motorcycles, snowmobiles and watercraft.

	The new HSR48 was developed for large, highly tuned engines. It flows 26% more air than the HSR42 and 14% more than the HSR45. Highly developed engines with large valves and expert port modifications can gain peak power using the HSR48. Engines with stock ports do not benefit from the 48's greater flow. Click on the HSR48 image for technical specifications.

You can find our installation manuals for the HSR42 and HSR45 carburetor kits in these pages. We include a separate tuning manual as well as an exploded view and parts list for the HSR carburetors.

We have added owner's manuals for the "HS40," "RS" series, "VM" Round slide and "SBN" Watercraft carburetors to our web site. All manuals can be found by clicking on the "Manuals" hot link on the left side of this page.

All our manuals are in "PDF" format. This ensures that your printout will exactly match our original. PDF is an Adobe proprietary format and you must have "Adobe Acrobat Reader" to view and print the manuals. The reader is free and we have included this link to the Adobe Website where you may download the program if you don't already have it. You may also use the Adobe icon/link located on the "manuals" page.

"Content" is what this site is about. Expect to see application information and other data that can help you get the most out of your Mikuni HSR carburetor and your Harley-Davidson motor. Please browse our site now, bookmark it and return often. We will expand its content as quickly as possible.