WINTER 2018:

11/20/2018:  We are pending release of the FIREPLUG CDI replacement for the 80~84 Yamaha models listed below.   This CDI has been around since 2011, but never made it into production.  It will be available shortly.  Watch the website for details!

1980 SR540D
1981 SR540E
1982 ET340F
1982 ET340TF
1982 SR540F
1982 SS440F
1983 EC340G
1983 ET300G
1983 ET340TG
1983 SS440G
1983 SRV (SR540G)
1984 ENTICER 300 (ET300H)
1984 ENTICER 340 (ET340H)
1984 EXCEL III (EC340H)
1984 PHAZER (PZ480H)
1984 SRV (SR540H)
1984 SS440 (SS440H)

We are always open to new product development, and often reach out to the public to borrow or purchase specific vintage snowmobile or motorcycle models for R&D / CDI development.  Your help will result in a FREE CDI!

We are located in SE-Michigan, about 40 miles North of Detroit (South of Port Huron).  So if you have a particular Vintage snowmobile or motorcycle model that no longer has a CDI available, please contact us via e-mail link below:


(No priority in listings below…Engine Must Run)

ARCTIC-CAT: 4-plug Kawasaki F/A-T7 engine (1975-El-Tigr’es’ etc)
Ski-Doo: TUNDRA II –  1993~1998
SKI-DOO RV 77~78 or Sonic

John-Deere Liquefier 1980
RUPP (Xenoah engines) 

FALL 2018:

The e-mails & phones ringing for snowmobile CDI’s!  Tis the season of grass-drags & winter preparation for the sleds!

We completed a FIREPLUG CDI for the Yamaha MX175 A-B (1974/75) MX motorcycles early this fall.  We had no intention of doing it initially, but the pieces fell into place very quickly with excellent results!   This adds to our expanding list of Vintage Motorcycle FIREPLUG CDI’s now available.   We will continue to look into other motorcycle CDI’s from 70/early 80’s as the requests & support come in.

FALL 2017:
We had no opportunities to add any snowmobile CDI models to the FIREPLUG line this off-season.  All the arrangements we had for sled access fell through.  This has become a tedious task when attempting to do development for snowmobiles the past few years.   Listed above are the models we are still getting CDI request for.  Any information leading to us obtaining these models (borrow, rent or purchase) is appreciated…thanks.
We just completed a summer FIREPLUG CDI development for a couple of Enduro / MX motorcycle models:

Kawasaki 1971~1975 F5, F7 & F9: (F7-175cc / F5-F9-350cc Bighorn).   FIREPLUG CDI replaces OEM Kokusan / Kawasaki 21119-007 / CU1124 superseded by 21119-013

Yamaha DT360A, DT400C, MX400B, IT400C & YZ400C from 1974~1976.  FIREPLUG CDI REPLACES MITSUBISHI F8T00172 / OEM#: 445-85540-22: This CDI is close to production, but need a little more time to validate before marketing it.  Hope to have it available in November 2017.  Please watch the website for updates.

SPRING 2017:
We are expanding our FIREPLUG CDI line up to include some vintage MX motorcycles.  We only started offering these at the end of 2016, and they have started to become popular already. We are finding the vintage MX bikes have a lot in common with the snowmobiles from the same era.  So it’s quite possible we will be adding more Vintage motorcycle CDI to the FIREPLUG line-up in the future.  Thanks to this expansion, we are now selling FIREPLUG CDI’s into warm-weather states where we have never sold a FIREPLUG CDI before.  States like Texas, California & Arizona now have FIREPLUG CDI’s on their MX bikes.  Here’s the latest FIREPLUG CDI models for motorcycles:

YAMAHA MX:  YAMAHA 1973~75 MX 250/360, 1974~76 YZ125, 1974~75 YZ250 Motorcycles.  OEM#: TIA01-02-3XXReplaces Yamaha OEM CDI ignition module 364-85540-13-00, as well as previous -11-00 & -12-00 versions.

We also have a 1978 YZ250 available for CDI development.  This should add a couple of additional models.  Watch for it this summer.

SUZUKI PE ENDURO:  PE 175 / 250 / 400 (1977~84)
If you are interested in the PE175/250/400 CDI, please contact us.
SUZUKI CDI OEM#: 32900-41420 / 40420  / 40520 & possibly others


YAMAHA:  Our Yamaha Enticer / BRAVO FIREPLUG CDI replacement has also become popular.  Still lot’s of nice sleds around with no spark.  As typical with Yamaha’s, the stator and components under the flywheel are pretty rugged.  It’s the CDI’s that fail.  An we are here to help!

  We are arranging for a John-Deere 1980 Liquifier for this summers R&D for a replacement CDI.  Lot’s of interest in this CDI, so we are going to make it happen.  This same CDI was used on the JD’s & Kawasaki Invaders from 1978~1982, so hoping to cover some popular models with the FIREPLUG CDI for next season.  We will post more info as we make progress with the development.

We are hearing rumors that one of the other CDI rebuilders in the states may be getting out of vintage snowmobile CDI products to concentrate more on their Marine applications.  I’m not that familiar with their vintage snowmobile CDI offerings, however we are looking into the possibility of picking up the models that did provide.