Description
8R4 was offered with individual bullet terminals, a 2-position plug (shown) and a 3-position plug (shown below) fro the mid 80’s ~ 90’s. I
Let us know what configuration you have before ordering.
*FIREPLUG CDI to replace the 8R4 CDI used on YAMAHA snowmobile models from 1986 thru mid 90’s* .
This is a new CDI offering for a number of Yamaha sleds. If your CDI is stamped 8R4 on the end, or has white stampings such as (81E-MO 69R or 80F-MO) on the box, this is probably the replacement. contact us to confirm.
This FIREPLUG CDI replaces CDI # 8R4 models with bullet connector and the other Yazaki type 2 & 3-position white plug models. It is best to e-mail us a pic of your CDI / wiring colors & terminals before ordering.
More energy over stock OEM CDI.
Uses Factory OEM-style connectors & terminals for direct plug-in to factory harness.
NOTE: FIREPLUG CDI housing is similar in size to OEM and will fit into original rubber mounting boot-strap
*Follows OEM timing profile for true plug & play installation.
Best WARRANTY available!
MAY FIT THE FOLLOWING (please confirm your model matches below & matches the terminal wiring in pictures before ordering)
1985/86 – 93 BRAVO
1987- ? INVITER
VIKING VK540
Possibly fits other models into the 90’s. Check for stamping on OEM CDI box for 8R4, then note the type of connectors used for fitment.
NOTE:
There was an added throttle position sensor wire that tied into the CDI kill-switch wiring. This was a safety function to eliminate engine start if throttle wasn’t fully closed. We do not include this function (Blk/Yel wire in plastic plug), however the Fireplug CDI will plug directly to your existing harness and operate otherwise. It just won’t have the throttle cut-off feature available.
contact us before ordering if your model has this plug.
* Always check your timing when changing CDI’s to confirm it is set to factory specifications.
