FIREPLUG CDI for YAMAHA 74/75 GPX / THUNDER-JET / 76 SRX & 76 EXCITER & STX (Canadian)
FIREPLUG CDI for YAMAHA 74/75 GPX / THUNDER-JET / 76 SRX & 76 EXCITER & STX (Canadian)

CDI APPLICATIONS: 74/75 YAMAHA GPX & THUNDER-JET SX338/433 76 SRX & 76 EXCITER / STX (Canadian) Replaces: HITACHI T1A02-03-309 & 310 HITACHI T1A02-05-407 & 408 & T1A02-06-405 & 01-350 aftermarket OEM Compatible Bullet-type connectors are used. DYNO-PERFORMANCE: We’ve had results … Continued

$155.00 Add to cart
FIREPLUG CDI for Yamaha Enticer-Bravo  250/300/340 to1984
FIREPLUG CDI for Yamaha Enticer-Bravo 250/300/340 to1984

We’ve completed the FIREPLUG CDI development & testing for the Yamaha Enticer 250, 300 & 340. These were great sleds with poor CDI’s…but we’ve solved that! Verify the wire colors & connectors match your configuration & 8H4-20 is stamped on … Continued

$155.00 Add to cart
FIREPLUG CDI for Yamaha RD250, RD350 & RD400
FIREPLUG CDI for Yamaha RD250, RD350 & RD400

REPLACEMENT CDI BOX when using the TD / TZ Stator / Rotor 1973 ~ 1979: We recently designed a FIREPLUG CDI box to replace the stock Hitachi CDI unit that was available on the Vintage Yamaha TD / TZ racing … Continued

$250.00 Add to cart
FIREPLUG CDI for Yamaha SR292 & T-Jet
FIREPLUG CDI for Yamaha SR292 & T-Jet

APPLICATIONS: 73 YAMAHA SR292 & THUNDER-JET 292, replaces HITACHI T1A01-04-XXX. CONNECTORS are OEM-type compatible plug-in *Above picture of original OEM hitachi-case with FIREPLUG CDI internals installed.  $25 extra charge for this service if OEM enclosure is sent in for re-use. … Continued

$155.00 Add to cart
FIREPLUG CDI for Yamaha SR433/643 twin 72/73
FIREPLUG CDI for Yamaha SR433/643 twin 72/73

CDI APPLICATIONS:
72/73 YAMAHA SR433/643 twin

Replaces OEM:
HITACHI T1A02-02-210 & 310

OEM Compatible rubber Bullet-type connectors are used.

OEM Stator Values:
BROWN to YELLOW = 42-ohms
RED to BLUE = 730-ohms

Trigger Values:
w/RED to BLACK = 50-ohms

w/BLACK to BLACK = 50-ohms

CDI will mount using 2 of the original 4 mounting holes.  All wires are direct plug-in.  No cutting or splicing necessary. (See picture)

OEM housing OPTION:  For some, it is desired to re-use your original Hitachi OEM housing.  We have the capability of integrating the FIREPLUG CDI electronics into the OEM hitachi aluminum enclosure.  From the outside, the CDI appears OEM.  This keeps the sleds stock integrity for shows etc.  The real difference however is with the FIREPLUG CDI internals, your SR will actually have spark & run!  This service is a $35 cost adder.
Contact us direct to inquire about this option.

DESIGN BACKGROUND: The FIREPLUG CDI is a high-performance replacement ignition unit for your Vintage Yamaha. Other improvements from the original Hitachi CDI is the elimination of the rev-limiter, which the Hitachi CDI utilized to stop over-revving. This was a huge disadvantage for modified engines, as the maximum RPM was limited by the CDI box. The FIREPLUG allows the engine builder to determine the RPM range. The FIREPLUG CDI provides a higher-energy output. This translates to quicker starting, quicker throttle response, stronger pull & cleaner burning combustion.

The FIREPLUG is manufactured using the best available industrial-grade components. The FIREPLUG is not a high-volume / mass-produced imported device. It doesn’t exist until an order is received. Ask anybody currently running our FIREPLUG CDI ignition unit.

There is not a better CDI available…period!

$190.00 Add to cart
FIREPLUG CDI for Yamaha SRX 77-79 & 80
FIREPLUG CDI for Yamaha SRX 77-79 & 80

DESIGN BACKGROUND: The SRX FIREPLUG CDI is a High-Performance replacement CDI for your Vintage Yamaha SRX. The FIREPLUG CDI mounts in the original location and connects directly to your factory harness. The FIREPLUG CDI provides a higher energy output at … Continued

$155.00 Add to cart
FIREPLUG CDI for YAMAHA TZ 750 motorcycle
FIREPLUG CDI for YAMAHA TZ 750 motorcycle

Yamaha made these bikes specifically for 750 formula one racing. It’s a 4 cylinder water cooled 2 stroke. They were manufactured from 1974 thru 1978. We validated the FIREPLUG CDI design by testing on a 1974 Model “A” TZ750 motorcycle. … Continued

$325.00 Add to cart
Other Stator Rewinding (Yamaha, Kawasaki, Polaris, Ski-Doo, Arctic-Cat, etc)
Other Stator Rewinding (Yamaha, Kawasaki, Polaris, Ski-Doo, Arctic-Cat, etc)

Contact us by E-mail for a custom quote or have questions
– or –

Phone: (810) 765-0820 (EST) (available most evenings)

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PRESTOLITE B-TYPE OEM (STATOR-SIDE) MATING CONNECTOR
PRESTOLITE B-TYPE OEM (STATOR-SIDE) MATING CONNECTOR

For PRESTOLITE CDI / STATOR (Mercury, Rupp, boa-Ski, Skiroule, Speedway, John-Deere, others) Conversion adapter pigtail for stator wire harness to convert A-style stator to B-style harness so more common B-Style CDI can be used with older A-style stator. Click on … Continued

$8.00 Add to cart
Rewound Prestolite Stator
Rewound Prestolite Stator

We need your old PRESTOLITE stator core returned to us for rewinding or exchange before we can ship.  If we have one in stock, we will exchange for faster turn-around time. Contact Us: info@cdibox.com for shipping address. We rewind the … Continued

$165.00 Add to cart
REWOUND THUNDERBOLT STATOR
REWOUND THUNDERBOLT STATOR

MERC L/C TWISTER THUNDERBOLT STATOR REWINDING:  For Mercury 76 Sno-Twisters with the THUNDERBOLT Ignition system Return your old core for rewinding or core-exchange OEM TYPICAL COIL RESISTANCE +/- 10% BLUE (LOW-SPEED WINDING) = 8000-ohms RED (HIGH-SPEED WINDING) = 100-ohms

$165.00 Add to cart