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Looking to spice up or revitalize your old Japanese inline 4 cyl? Look no further! Speedmotoco is now offering Mikuni RS Series Carburetors for your Honda, Yamaha, Suzuki, Kawasaki Inline 4 cyl. Unmodified, or even souped up race engines, we have the kit for you. The Mikuni Rs series carbs offer more power, snappier throttle response and more refined power curve. These are brand new genuine Mikuni carbs straight from Japan. Dont see your bike listed? Shoot us a call or email 541-687-6400 or shop …

Tuning Tips Mikuni CarburetorsPlease 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 anti-pollution laws apply.Mikuni Carburetors should be replaced, repaired or tuned by the selling dealer, or a trained or qualified race mechanic.SpeedMotoco is not responsib …

If you are a proud owner of a Harley-Davidson motorcycle, you know that it is more than just a bike – it's a lifestyle. And like any true enthusiast, you want to make sure that your beloved machine is in top shape and looking its best. That's where Harley-Davidson parts and upgrades come in.One of the best ways to enhance your Harley-Davidson bike is by investing in a Harley Davidson HSR42 EFI Injection Mikuni conversion kit HSR42-19 Twin Cams. These quality parts can improve its perfo …

    Are you torn between choosing vintage or modern motorcycle parts for your bike? As motorcycle enthusiasts, we understand the struggle of wanting to maintain the classic appeal of a vintage bike while also enjoying the advancements in technology that come with modern parts. At Speed Moto Co, we offer a wide range of motorcycle parts for both vintage and modern bikes to suit every rider's style and preferences.Vintage motorcycle parts have a timeless charm that appeals to many riders …

 Easy Kit Installation Instructions for The HSR series carburetors are precise yet durable instruments; however, like any other piece of fine equipment, they require correct installation and reasonable care to assure optimum performance and long life.  Extra time spent during installation will pay off in both short and long term performance and reliability. This Mikuni HSR carburetor kit is designed to be a bolt-on application, and as such, is set-up and jetted properly for mo …