53-644 Programmable Ignition Module Compatible with Harley Big Twin 1970-1999 & Sportster 1971-2003 (Except 1200S), Fits Carb Engines
$51.00
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53-644 Programmable Ignition Module Compatible with Harley Big Twin 1970-1999 & Sportster 1971-2003 (Except 1200S), Fits Carb Engines
$51.00
Compatibility
| Model | Years | Engine Type | Notes |
|---|---|---|---|
| Harley-Davidson Big Twin | 1970–1999 | Carbureted | All models |
| Harley-Davidson Sportster | 1971–2003 | Carbureted | Except 1200S |
Features
- Part #53-644 — Programmable single fire ignition module for precise timing control
- Direct drop-in replacement for OEM points-style ignition systems
- Programmable advance curve — adjustable to match your engine build
- Improves low-end torque and high-rpm power output
- No additional modifications required for carbureted engines
Installation
- Disconnect the negative battery terminal
- Remove the OEM points distributor cap and contact set
- Mount the 53-644 module in the distributor location and connect wiring by color code
- Use the programming tool to set the desired ignition advance curve for your engine spec
- Reconnect the battery and start the engine to verify timing
Please confirm your model year and engine type match the compatibility table above before ordering. Contact us if you have any questions.