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Mikuni HSR42 Easy Kit

(20 reviews)

Item: 349819

Fits: 2005 Harley Davidson XL1200R Sportster 1200 Roadster

$309.39

Out of Stock

Mikuni HSR42 Easy Kit


Mikuni's HSR 42-11 performance carburetor slips onto your 1994 to 2006 Harley or Buell using the original throttle cables, manifold and choke cable along with an adapter for mounting any 1989 and later CV or S&S carburetor type air-cleaner (sold separately). For the maximum available increase in all round performance and power available, this kit will instantly impress.

  • Keeps stock factory look and fit, with better throttle response, improved acceleration, increased power and torque
  • Smoothbore, flatslide with roller bearings, and accelerator pump technology delivers peak performance from idle to full throttle
  • Comes jetted to work with most applications, though some tuning may be required
  • Includes N100.604-155 and N100.604-165 main jets for tuning
  • Made in the Japan

Product Note: Only fits models with 1989 or later CV or S&S carburetor type air-cleaners, (sold separately).

Specification Details
Bore 42 mm
Choke Type Cable
Country of Origin Japan
Finish Raw
Height 176 mm
Intake Bell O.D. 65 mm
Main Jet 160 (N100.604)
Manifold Type Spigot
Manifold to Manifold 90mm
Needle 8DDY1-97
Needle Jet Y-6 (723)
Pilot Jet 25 (VM28/486)
Spigot Mounting O.D. 46.5mm
Throttle Valve 3.0 (TM42/08)
Width 100 mm

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Buell
  • M2 Cyclone 1997-2000
  • S1 Lightning 1996-1998
  • S2 Thunderbolt 1995-1996
  • S3 Thunderbolt 1997-2001
  • S3T Thunderbolt 1997-1998, 2000-2002
  • X1 Lightning 1999-2002
  • X1W White Lightning 2002
  • XB12R Firebolt 2004-2006
  • XB12S Lightning 2004-2006
  • XB12Scg Lightning Low 2005-2006
  • XB12X Ulysses 2006
  • XB9R Firebolt 2003-2006
  • XB9S Lightning 2003-2004
Harley Davidson
  • XL1200C Sportster 1200 Custom 1996-2006
  • XL1200L Sportster 1200 Low 2006
  • XL1200R Sportster 1200 Roadster 2004-2006
  • XL1200S Sportster 1200 Sport 1996-2003
  • XL883 Sportster 883 2004-2006
  • XL883C Sportster 883 Custom 1998-2006
  • XL883L Sportster 883 Low 2005-2006
  • XL883R Sportster 883R 2002-2006
  • XLH1200 Sportster 1200 1994-2003
  • XLH883 Sportster 883 1994-2003
  • XLH883DLX Sportster 883 Deluxe 1994-1995
  • XLH883HUG Sportster 883 Hugger 1994-2003

Customer Reviews


Bike runs great

By   on  Verified Purchaser

Bike runs great with minimal adjustments thank you.


Mikuni HSR Carburetor Kit

By   on  Verified Purchaser

So far, so good, definitely a noticeable difference, not drag racing but noticeable. Easy install on "93 EG" Still tuning the right sweet spot! The air cleaner adapter can be a little mind teaser.


Mikuni HSR42 Kit

By   on 

Work like it should ran great no adjustment needed


Great Price

By   on  Verified Purchaser

Quality product for a great price.


Mikuni HSR42 Carb

By   on  Verified Purchaser

Had to do a little bit of alterations but pretty simple works just fine


Mikuni HSR42

By   on  Verified Purchaser

Absolutely great carburetor.


Mikuni

By   on  Verified Purchaser

Great carburetor, easy install as stated. Definitely better performance out off the box.


Runs well

By   on  Verified Purchaser

Easy install, able to use stock air cleaner, o.e. choke cable w/mikuni supplied spring and barrel.


Best bang for your buck

By   on  Verified Purchaser

Easy install and a phenomenal performance upgrade. Crisp throttle with instantaneous response. Don't even consider other carbs, this us the one to get.


Happy Bike

By   on 

Great performance out of the box. Did a little research and fumbled upon Joe Mintons settings. Followed them to the letter! The old girl runs like a champ. Instant throttle response. More power than ever. The bike just seems happy. Definitely 5 stars.


New life to my 1998 Fatboy

By   on  Verified Purchaser

Works great. My Fatboy runs better than ever.


HSR42

By   on  Verified Purchaser

The carb did what I thought it would and should.


Recommended

By   on  Verified Purchaser

After using this unit for some time, I'm able to say it has worked perfectly, fit as expected, was tuned out of the box, and simple to install.


I had 3 minor issues, but I'm very pleased

By   on  Verified Purchaser

I had 3 minor issues, but I'm very pleased with the HSR42. 1) Instructions said V.O.E.S. Switch must be relocated behind horn for carb to fit. This wasn't mentioned in ad. I found an easier way by removing the mounting bracket from the VOES switch, connecting it to the carb with a 1 1/2" piece of hose. It just floats above the carb vacuum fitting. I didn't have to disturb any wiring. 2) Ad said Sportster choke cable would work. It does, but it's too long. About 4" shorter would be ideal. On the CV carb the cable comes out of the carb toward the rear of the bike. The HSR connects on the side toward the front, putting it closer to the knob mounting point. 3) Sportsters use 1/4" ID fuel line. The HSR carb sent me has a 5/16" ID fuel inlet. This caused a trip to the hardware store to get a 5/16 to 1/4 barbed reducer. No problem, except now I have 4 connections in my fuel line instead of 2. The good part is that once hooked up the bike fired right up, and ran better than ever. The HSR was tuned good enough for me right out of the box.


Mikuni hsr 45

By   on  Verified Purchaser

Highly recommended, did zero tuning on this carb and slapped it on my bike right out of the box and it's running amazing.


Best carb for your older H-D

By   on  Verified Purchaser

This is a terrific carb for your old H-D. With the tuning kit, you can dial the carb in to meet your specific needs, whether that's higher MPG for touring, or higher HP. Really great carb. Lifesaver!


Cranking

By   on  Verified Purchaser

Love it. Night and day difference. Install not too bad I have to say.


PartsGiant & HSR 42 - a Great Combo!

By   on 

Put the HSR 42, 42-11 Easy Kit onto my 2000 Buell M2. Easy installation, quality product. Jetting out of the box was near spot-on. Crisp throttle response and a lot of fun to ride. Feels like more power. Good product. These are the guys to buy from!


Great move on my part

By   on  Verified Purchaser

Sick of messing around with my cruddy old carb. This thing with a little tuning really opened my hog up! Only complaint is the long idle cable, other than that highly recommend!


Great price and service

By   on  Verified Purchaser

Great product, fit perfect.


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Questions & Answers


Does this carb fit on the 2006 sportster 883 ?

So long as you choose that 2006 XL883 Sportster before adding to your cart, you should have no fitment problems.

By Andy

Have a question? Please ask our experts and customers who own this product.