World's Largest Aftermarket Motorcycle Parts and Accessories Superstore!


Mikuni HSR42 and HSR45 Rebuild Kit

Mikuni HSR42 and HSR45 Rebuild Kit
Product may vary from photo(s).

Everyday Low Price: $43.99

Gold Club Price: What's This? The Gold Club is our premier membership program. For most items members receive 10% off every day, plus exclusive sales and benefits just for members. More Info $39.59

J&P Part: 400-970

Rating: Read Reviews


Instructions 400-970.pdf

Mikuni HSR42 and HSR45 Rebuild Kit

• Genuine Mikuni rebuild kit

• Includes all necessary components for rebuilding carb

Product Specs

  • Bore Size: HSR 42/45
  • Sold in Units: Kit


Note: This item is a universal/custom fit component, and does not have any direct standard/OEM model application. Some items may require modification and an advanced level of mechanical skill and/or knowledge for installation.

Customer Reviews

 fasteddie1957 Posted:

Works like new again

 Acousticremedy Posted:

Everything I needed.

 billybacon Posted:


 rob62 Posted:

Good basic kit

 ktm923 Posted:

J&P cycles is the place to go when I need something for my bike! Posted:

I think the price was a little steep for what the kit contained.

 chafe76 Posted:

very easy to use. included all parts for complete rebuild

 klutz Posted:

The kit contained everything to rebuild my carb.

 sandegj Posted:

enough parts to rebuild a carb that sat to long with today's junk fuel.

 hard_head Posted:

Good assortment of the needed parts to bring a Mikuni back to life.

 xxxviperxxx Posted:

some instructions with the kit would be good.

 sbpetro Posted:

This product is fantastic and very easy to install. It's been on the carb now for two weeks with no flaws. The rebuild kit made the carb seem like new and the throttle response is back to being dead on.

 randyf Posted:

This is a great kit to get your MK45 back in shape. Easy to use and everything fits correctly.

Live Help

Get Help From Our Industry Experts

Call Us 24/7 1-800-318-4823

Help / FAQs