Product Description
The TCCI-ENFD-5788 is an OE (Original Equipment) grade ignition controller manufactured by Varroc, a primary electronic supplier for Royal Enfield. Unlike the 350cc modules, this 500cc-specific unit is mapped for a different ignition curve to handle the larger piston and higher thermal loads of the 500cc block.
The Brown Connector is a key identifier, ensuring that mechanics and owners do not accidentally install the 350cc version (which often uses a black or blue connector). This TCI unit is responsible for processing signals from the pickup coil and triggering the ignition coil at the exact millisecond required for optimal combustion. It is essential for resolving issues like starting trouble, engine “missing” at high speeds, or erratic idling.
Key Features:
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Digital Ignition Mapping: Specifically programmed for the stroke and bore of the 500cc UCE engine to prevent “back-kick” during starting.
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Brown Connector Interface: Direct plug-and-play 10-pin/12-pin interface (standard for 500cc models) for error-free installation.
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Microprocessor Controlled: Real-time spark timing adjustment based on engine RPM for better fuel efficiency and lower emissions.
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Thermal Stability: Housed in a high-grade polymer casing that protects internal circuits from engine heat and moisture ingress.
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OEM Reliability: Manufactured to the same standards as the factory-fitted unit (RE Part No. 570888/A or similar).
Technical Specifications:
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Vendor Code: TCCI-ENFD-5788 (or TCCI-ENFD-5788B)
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Brand: Varroc Engineering Ltd.
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Engine Compatibility: 500cc UCE (Single Spark / Twin Spark Carbureted models)
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Voltage: 12V DC
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Connector Color: Brown
Vehicle Compatibility:
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Royal Enfield Classic 500 (UCE models, approximately 2010–2017)
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Royal Enfield Standard 500 (Bullet 500 UCE variants)
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Note: Specifically for non-EFI (Carbureted) 500cc models or those using TCI ignition systems. Not compatible with the newer J-Series 350cc or EFI-only 500cc models that use a full ECU.











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