Accel Unilite Breakerless Ignition System A554 for Harley FXST (1984–1993)
Replace points with a maintenance-free dual-fire electronic ignition designed for Harley FXST models from 1984 through 1993. The Accel Unilite integrates a photo coupler, a signal processor, and a power switch into a compact E-spark module that interrupts infrared light from the shutter wheel to energize the ignition coil; when light resumes, the stored energy discharges to ignite the plug, delivering a consistent spark for smoother throttle response.
- Part number: A554
- Type: breakerless electronic ignition, dual-fire system
- Fitment: Harley Davidson FXST (1984–1993)
- Includes accessories: Timer Device Tool (SKU 16-1736); Clean Time Tool (SKU 16-0715)
- Manufacturer: Accel; Made in the USA
- Recommended with: mechanical advance unit (order #32-7510); dual-fire coils (#32-7793 or #32-8086)
- Installation: simple with detailed online instructions
This upgrade is designed for street and highway use, offering enhanced reliability, better fuel efficiency, and smoother engine performance compared to points-based ignition. It is a durable, high-quality choice for restoring or upgrading FXST ignition systems.
Mallory unilite breakerless electronic ignition is a dual fire system.
Upgrade your Harley Davidson FXST with the Accel Unilite Breakerless Ignition System, part number A554, designed for optimal performance from 1984 through 1993 models. This advanced electronic ignition replaces traditional points with a modern E-spark module that includes a photo coupler, a signal processor, and a power switch, delivering reliable ignition performance. The system works by interrupting infrared light reaching the photo coupler as the shutter wheel rotates, which energizes the ignition coil. When the infrared light resumes contact, the stored energy discharges, igniting the spark plug for efficient combustion. This design ensures a consistent spark for smooth engine operation and improved throttle response. The kit is suitable for street and highway use, providing a dependable upgrade for your motorcycle's ignition system. It is recommended to order a mechanical advance unit (order #32-7510) along with a dual fire coil such as #32-7793 or #32-8086 for optimal performance. The system is easy to install with detailed instructions available online, and it is manufactured in the USA for quality assurance.
The package includes essential accessory items, such as the Timer Device Tool (SKU 16-1736) and the Clean Time Tool (SKU 16-0715), which assist in proper setup and maintenance of the ignition system. Designed to fit Harley Davidson FXST models from 1984 to 1993, this ignition upgrade offers a significant improvement over traditional points-based ignition systems, providing enhanced reliability, better fuel efficiency, and smoother engine performance. Whether you are restoring a vintage motorcycle or upgrading for better street performance, the Accel Unilite system is a durable and high-quality choice that ensures your motorcycle runs at its best.
Features:
- Electronic ignition module with photo coupler, signal processor, and power switch for reliable spark control
- Replaces traditional points for maintenance-free operation
- Designed for Harley Davidson FXST models from 1984 to 1993
- Recommended to use with mechanical advance (order #32-7510) and dual fire coils (#32-7793 or #32-8086)
- Easy installation with detailed online instructions
- Manufactured in the USA for quality assurance
Fitment:
Harley Davidson FL 1970
Harley Davidson FL 1971
Harley Davidson FL 1972
Harley Davidson FL 1973
Harley Davidson FL 1974
Harley Davidson FL 1975
Harley Davidson FL 1976
Harley Davidson FL 1977
Harley Davidson FL 1978
Harley Davidson FL 1979
Harley Davidson FL 1980
Harley Davidson FL 1981
Harley Davidson FL 1982
Harley Davidson FL 1983
Harley Davidson FL 1984
Harley Davidson FLST 1986
Harley Davidson FLST 1987
Harley Davidson FLST 1988
Harley Davidson FLST 1989
Harley Davidson FLST 1990
Harley Davidson FLST 1991
Harley Davidson FLST 1992
Harley Davidson FLST 1993
Harley Davidson FLST 1994
Harley Davidson FLST 1995
Harley Davidson FLST 1996
Harley Davidson FLST 1997
Harley Davidson FLST 1998
Harley Davidson FLST 1999
Harley Davidson FLT 1980
Harley Davidson FLT 1981
Harley Davidson FLT 1982
Harley Davidson FLT 1983
Harley Davidson FLT 1984
Harley Davidson FLT 1985
Harley Davidson FLT 1986
Harley Davidson FLT 1987
Harley Davidson FLT 1988
Harley Davidson FLT 1989
Harley Davidson FLT 1990
Harley Davidson FLT 1991
Harley Davidson FLT 1992
Harley Davidson FLT 1993
Harley Davidson FLT 1994
Harley Davidson FLT 1995
Harley Davidson FLT 1996
Harley Davidson FLT 1997
Harley Davidson FLT 1998
Harley Davidson FLT 1999
Harley Davidson FX 1971
Harley Davidson FX 1972
Harley Davidson FX 1973
Harley Davidson FX 1974
Harley Davidson FX 1975
Harley Davidson FX 1976
Harley Davidson FX 1977
Harley Davidson FX 1978
Harley Davidson FX 1979
Harley Davidson FX 1980
Harley Davidson FX 1981
Harley Davidson FX 1982
Harley Davidson FX 1983
Harley Davidson FX 1984
Harley Davidson FXD 1991
Harley Davidson FXD 1992
Harley Davidson FXD 1993
Harley Davidson FXD 1994
Harley Davidson FXD 1995
Harley Davidson FXD 1996
Harley Davidson FXD 1997
Harley Davidson FXD 1998
Harley Davidson FXD 1999
Harley Davidson FXR 1982
Harley Davidson FXR 1983
Harley Davidson FXR 1984
Harley Davidson FXR 1985
Harley Davidson FXR 1986
Harley Davidson FXR 1987
Harley Davidson FXR 1988
Harley Davidson FXR 1989
Harley Davidson FXR 1990
Harley Davidson FXR 1991
Harley Davidson FXR 1992
Harley Davidson FXR 1993
Harley Davidson FXR 1994
Harley Davidson FXST 1984
Harley Davidson FXST 1985
Harley Davidson FXST 1986
Harley Davidson FXST 1987
Harley Davidson FXST 1988
Harley Davidson FXST 1989
Harley Davidson FXST 1990
Harley Davidson FXST 1991
Harley Davidson FXST 1992
Harley Davidson FXST 1993
Harley Davidson FXST 1994
Harley Davidson FXST 1995
Harley Davidson FXST 1996
Harley Davidson FXST 1997
Harley Davidson FXST 1998
Harley Davidson FXST 1999
