53-644 Programmable Single Fire Electronic Ignition Module For Harley Dyna 2000i Big Twin Sportster
About the item
This 53-644 programmable single fire ignition module solves hard starting, unstable idling and weak throttle response issues for carbureted Harley motorcycles, upgrading stock ignition system performance effectively.
Upgraded Dyna 2000i electronic ignition module features full programmable settings and dual fire mode support, delivering precise ignition control and reliable engine operation for Harley Big Twin and Sportster models.
Features
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Fully Programmable Ignition Tuning：Supports 8-point wide-open and part throttle curve adjustment, programmable rev limit and crank revs tuning, allowing personalized engine calibration for different riding styles and modified setups.
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Precise Digital Ignition Control：Adopts quartz crystal accuracy and advanced microprocessor technology to adjust ignition timing in real time by speed and load, optimizing fuel combustion and boosting engine power output steadily.
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Improved Starting & Running Stability：Provides stronger, consistent spark during startup, eliminates hard start, flameout and uneven idling problems, greatly improving throttle sensitivity and daily riding smoothness.
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Dual Fire Mode Compatibility：Flexibly switches between single-fire and dual-fire operation, compatible with Evolution, S&S, Ultima and Shovelhead engines, covering most carbureted Harley models for versatile modification.
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Multi-Power Safety Protection：Built-in intelligent overvoltage, overcurrent and short circuit protection mechanisms, prevents circuit damage caused by abnormal voltage and current, extending module service life for long-term stable use.
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Accurate Riding Data Recording：Automatically records engine hours, max RPM, startup times and wide-open throttle duration, helping users analyze engine status and optimize maintenance schedules timely.
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Plug-and-Play Easy Installation：Compact cam-cover mount design fits perfectly with stock positions, no complex tools or wiring modification needed, realizing fast direct replacement for old or faulty ignition modules.
Full Specification
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Item Parameter
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Details
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Part Number
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53-644 (Dyna 2KiP Programmable)
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Product Type
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Single Fire Programmable Electronic Ignition Module
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Compatible Models
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1970-1999 Carbureted Big Twin, 1971-2003 Sportster (Exclude 1200S); S&S/Ultima/Revtech/Shovelhead/Evolution Motors
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Not Fit
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EFI Fuel Injection Models
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Core Technology
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Advanced Microprocessor + Quartz Crystal Precision Control
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Adjustable Function
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Throttle Curve, Rev Limit, Crank Revs, Rear Cylinder Offset Timing
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Safety Design
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Overvoltage, Overcurrent & Short Circuit Protection
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Operation Mode
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Switchable Single Fire / Dual Fire Mode
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Product Size
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10.5×10×4cm / 4.13×3.94×1.57inch
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Material
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High-Strength Metal & Premium Electronic Components
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Data Recording
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Engine Hours, Max RPM, Startup Times, WOT Working Data
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After-Sales Policy
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30 Days Free Return, 90 Days Warranty
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Package Contents
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1 x 53-644 Ignition Module
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Condition
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Brand New
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Application Scenarios
This 53-644 programmable ignition module is ideal for Harley carbureted motorcycle daily maintenance, faulty ignition replacement and performance modification. Perfect for street riding and engine tuning, it fixes common ignition faults and upgrades overall engine combustion efficiency for old-school Harley models.