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Mikuni HSR42
Read ( 14 ) Reviews

Mikuni HSR42 "Total" Carburetor Kit

J&P Cycles Part Number: 400-681

Manufacturer Part Number: 42-8

$598.99

Gold Club Price: $539.09

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Description

Description for Mikuni HSR42 "Total" Carburetor Kit

There are carburetor kits, and then there's the Mikuni HSR42 Total Carburetor Kit. When you're ready to take your motorcycle's performance to the next level, it's time for a carburetor kit that improves starting, rideability, power, and torque. Get all that and more in this kit, featuring a two-piece throttle slide that rolls on stainless roller bearings, a lighter throttle return spring, a low-speed air screw, and an enlarged needle valve and float bowl. The Mikuni HSR42 Total Carburetor Kit includes HSR42 carburetor, performance intake manifold, free-flowing K&N air filter assembly, chrome air-cleaner cover, adaptors and detailed installation and tuning manual. Not compatible with cruise control. Fits all carbureted Evo Big Twin Models.

• Improves starting

• Improves Power

• Improves torque

• Two-piece throttle slide

• Lighter throttle-return spring

• Low-speed air screw

• Enlarged needle valve

• Fits all carbureted Evo Big Twin models

• Not compatible with cruise control

Product Specs

Product Specs for Mikuni HSR42 "Total" Carburetor Kit

Bore Size:
HSR42
Manufacturer Part Number:
42-8
Sold in Units:
Kit
Warehouse Part Number:
1078474
Fitment
Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

Compatible Models

Harley-Davidson® Models

  • Dyna Low Rider Convertible FXDS-CONV : 1994–1999
  • Dyna Low Rider FXDL : 1993–1999
  • Dyna Super Glide Custom FXDC : 1992
  • Dyna Super Glide FXD : 1995–1997, 1999
  • Dyna Super Glide Sturgis FXDB-S : 1991
  • Dyna Wide Glide FXDWG : 1993–1999
  • Electra Glide FLH : 1981–1984
  • Electra Glide Heritage FLH : 1981
  • Electra Glide Special Edition FLHX : 1984
  • Electra Glide Sport FLHS : 1982–1984
  • Low Rider FXSB : 1983–1985
  • Softail Bad Boy FXSTSB : 1995–1997
  • Softail Custom FXSTC : 1986–1999
  • Softail Fat Boy FLSTF : 1990–1999
  • Softail Heritage Classic FLSTC : 1987–1999
  • Softail Heritage FLST : 1986–1990
  • Softail Heritage Springer FLSTS : 1997–1999
  • Softail Night Train FXSTB : 1998–1999
  • Softail Nostalgia FLSTN : 1993–1996
  • Softail Springer FXSTS : 1988–1999
  • Softail Standard FXST : 1984–1990, 1999
  • Super Glide Custom FXRC : 1985
  • Super Glide Disc Glide FXRDG : 1984
  • Super Glide Electric Start FXE : 1982–1984
  • Super Glide Fat Bob FXEF : 1982–1985
  • Super Glide FXR : 1986–1994
  • Super Glide Grand Touring FXRD : 1986
  • Super Glide II FXR : 1984–1985
  • Super Glide Low Rider Anniversary FXRS : 1988
  • Super Glide Low Rider Convertible FXRS-CONV : 1989–1993
  • Super Glide Low Rider Custom Anniversary FXLR : 1987
  • Super Glide Low Rider Custom FXLR : 1987–1994
  • Super Glide Low Rider FXRS : 1984–1992
  • Super Glide Low Rider Sport FXRS-SP : 1987–1993
  • Super Glide Police FXRP : 1984–1994
  • Super Glide Sport Glide FXRT : 1984–1992
  • Touring Electra Glide Classic Anniversary FLHTC : 1988
  • Touring Electra Glide Classic EFI FLHTCI : 1996–1999
  • Touring Electra Glide Classic FLHTC : 1984–1998
  • Touring Electra Glide Sport FLHS : 1987–1993
  • Touring Electra Glide Standard FLHT : 1985–1988, 1995–1999
  • Touring Electra Glide Ultra Classic EFI FLHTCUI : 1995–1999
  • Touring Electra Glide Ultra Classic FLHTCU : 1989–1998
  • Touring Road Glide EFI FLTRI : 1998–1999
  • Touring Road Glide FLTR : 1998–1999
  • Touring Road King Custom FLHRS : 2004–2007
  • Touring Road King EFI FLHRI : 1996–1999, 2002–2005
  • Touring Road King FLHR : 1994–1999
  • Touring Tour Glide Classic Anniversary FLTC : 1988
  • Touring Tour Glide Classic FLTC : 1984–1992
  • Touring Tour Glide Ultra Classic EFI FLTCUI : 1996
  • Touring Tour Glide Ultra Classic FLTCU : 1989–1995
  • Wide Glide FXWG : 1982–1986
Customer Reviews

Customer Reviews for Mikuni HSR42 "Total" Carburetor Kit

Overall Rating

5 out of 5 stars (based on 14 reviews)

5 stars (11)

4 stars (3)

3 stars (0)

2 stars (0)

1 star (0)

0 stars (0)

Southroy on 9/30/2019

Put this on my Soft Tail Classic great throttle response amazing performance

JACK on 8/23/2019

Perfect fit and works great on my 85 Harley Low Rider FXSB. Had to get new throttle cables.

thepadder1 on 3/1/2019

5 Star

joeb420 on 3/1/2019

5 Star

Walkate on 10/1/2018

Great Product Love it, Delivery quicker than local. Go figure 5 days from the states. 10 or more from a delivery 2hrs down the road. Definitely ordering from here again and again and again.

joegaspari on 4/1/2016

easy to install and started instantly... my only complaint is the two intake manifold o rings were not included

joegaspari on 4/1/2016

easy to install and started instantly... my only complaint is the two intake manifold o rings were not included

flhp2009 on 6/25/2015

carb fit great the s@s throttle cables even fit .is a total upgrade from a super E idle is very smooth throttle response is totally improved and MUCH smoother i put this carb on a rigid frame bobber and the bike is much more controllable and enjoyable

larri on 5/4/2015

I have a 1999 FLHR and this kit is the best money I've spent on it.Its like a whole new bike

louzoglio on 7/2/2013

I just ordered the carb last night. I hope its everything everybody says about it. Cant wait to put it on.

Instructions & Manuals
Important Product Notes

1984-88 Big Twins require the use of 1990-95 style throttle cables.

Cannot be installed on 1984-88 FLT models, gas tanks may not clear carburetor.

Shipping Note

Due to state regulations we cannot ship this item to the state of California.

Pickup in our Retail Stores
Out of Stock in Retail Center Anamosa, IA
Out of Stock in Retail Center Daytona, FL
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Guaranteed Delivery By The 24th
Order By 1PM EST
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