Wednesday, February 18, 2026

Mikuni RS 34, 36, 38 Carburetor Kits NOW AVAILABLE at speedmoto

Mikuni RS 34, 36, 38 Carburetor Kits NOW AVAILABLE

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@speedmotoco.com. We will put together a custom kit just for you!

Tuesday, February 17, 2026

Mikuni HSR EFI conversion kits for all types of Harley Davidsons from SpeedMotoCo

Mikuni HSR EFI conversion kits!

We offer many different types of Harley EFI to carb conversion kits! Ranging from 1100-1700$. Mikuni Advertises the HSR as a bolt on 15hp/10tq. Get rid of your pesky fuel Injection. No electronic hassle to worry about. Listed below are the Carbs/ Ignitions we offer. You can find all of the kits here. If you dont see your bike listed, shoot us a call or email! 541-6876400 or shop@speedmotoco.com

HSR42/45/48 Raw & Polished available

All of the carburetor kits are complete total kits. They include Carb, Breather Kit, Manifold, and chrome air filter kit.

Ignition Modules Available.

Thunderheart Igntion. This is the most cost effective kit, it includes everything you need from ignition module, coil, wires, mounting plate. Below is the install instructions. A simple power/ ground and crank sensor output is needed.

https://thunder-heart.com/Tech%20Service%20PDFs/EI5012.pdf

TC88 Plug-N-Play Single Plug. By far the easiest to install, comes with a fully programable Ignition, and a new harness that will plug into your stock wiring harness. Power/Ground, and your tach output only wiring required. This is a Daytona-twin-tec product. Fits some 2004-2017 Twin Cam models. Linked below is the manufactures listing with all the install and fitment instructions.

https://daytona-twintec.com/product/30081-t-complete-tc88-ignition-and-harness-kit-race-twin-cam-1999-2003/

TC88 Plug-N-Play Dual Plug. By far the easiest to install, comes with a fully programable Ignition, and a new harness that will plug into your stock wiring harness. Power/Ground, and your tach output only wiring required. This is a Daytona-twin-tec product. Fits some 1999-2004Twin Cam models. Linked below is the manufactures listing with all the install and fitment instructions.

https://daytona-twintec.com/product/30080_tc88-ignition-and-harness/

TCFI Gen 4 Fuel Injection Controller for 2001-2013 Harley-Davidson® with 36 Pin Delphi® System. This kit fits most of the 36 PIn Delphi Bikes. Comes with Ecu, Controller, USB interface, and wideband. Very cool kit. Linked below is the manufactures listing with all the install and fitment instructions.

https://daytona-twintec.com/product/tcfi-gen-4-system/

Petcock and Petcock Adapters. All of the kits come with genuine Pingel petcock adapters and block off bungs. Magneti Marelli, Delphi Single, And Delphi Dual are available. Please select your kit in the drop down menu on listing.

The petcocks include are harddrive side exit petcocks.

Wednesday, December 11, 2019

Cb350 Retro racer build ~ cheap and easy. Part 1

We have a decent amount of parts laying around the shop and decided to throw some parts on the old cb350 we had laying around.

We wanted to leave the bike with stock suspension and build using the basic tools a guy or gal would have access to and on a budget.

First thing on the list was to ditch the rusted and pitted forks and throw on some forks

uppers https://www.speedmotoco.com/cb350-Honda-Fork-tubes-CL350-p/smc3954045.htm and

tapered bearings and swing arm bushings https://www.speedmotoco.com/product-p/ole-wobbly-350.htm from SpeedMotoCo.

Make sure to use the proper fork seals. We use OEM part # 91255-286-003 available here

https://www.speedmotoco.com/Fork-Seal-cb350-cl350-1968-1971-p/91255-286-003-.htm

That's all for today! stay tuned!

Thursday, December 22, 2016

2011 zx6r Cafe Fighter Build

Last years race bike is this months new project!

126hp on pump gas. 129 on MR12.

Number plate with integrated LED headlight.

More details to follow.

All www.speedmotoco.com parts!

Monday, December 14, 2015

cb350 Mikuni vm30 Carb kit complete! Mikunis ! Yummy!

Brand new carb kit for your cb/cl/sl 350 Honda

Excellent throttle response. Increased power~They should have put these on at the factory!

We offer a kit that is bolt on ready and easy to install.

2 - Genuine Mikuni vm30 carbs.

Each kit comes new 2-

UNI foam filters that fit under the stock side covers.

2- Angled Intakes that work fantastic with the stock battery box ( no relocating!)

2-1 complete throttle cable that fit your stock housing and no soldering!

Tygon fuel line and 2-fuel filters

We jet to you bike. Just send or call with your your bike specs and we jet your carbs to your bike.

Need help on the install? Just shoot us an email or give us a call!

http://www.speedmotoco.com/vm30-mikuni-carb-kit-cb350-cl350-sl350-complete-k-p/vm30-kitoval.htm

We have sold hundreds of these kits and have jetting specs for most applications. Don't be fooled by the other "universal jetted carb kits". These work.