Description
Ignition coils on V-twins degrade over time due to high engine heat and constant chassis vibration. On these early carburettor models, a weak coil results in rough running, weak hot-starting, and poor power delivery. These aftermarket coils are built to match the original specifications and physical size, providing a reliable spark and keeping these legacy 650cc Hyosungs running strong. Because factory production changed over the years, check your frame clearance and existing coil size before ordering to avoid a cheap bodge fix that fails under load.
💎 Reliable Spark for Classic 650s
Quality components engineered to provide reliable performance and longevity, justifying their use in demanding environments.
| Carb Specific Resistance Optimised for non-EFI low-pressure ignition systems. |
Durable Housing Resists weather and continuous engine vibration. |
| Easy to Install Uses existing factory mounts and standard HT leads. |
Fixes Misfires Restores smooth power delivery and steady idling. |
📜 Confirmed Fitment Guide (Carburettor Models Only)
📅 YEARS: Primarily early-to-mid 2000s models (Please confirm your physical coil size before purchasing).
❌ WILL NOT FIT: Any newer EFI (Fuel Injected) configurations or bikes originally utilizing physically smaller ignition coil bodies.
The factory spark plug caps breakdown over time. Secure your ignition path by upgrading to durable **NGK HT Leads & Spark Plug Caps** to guarantee a strong, reliable spark circuit. View NGK Caps here.
🔧 Install Tips
- Verify Physical Size: Measure your old coil space or check frame clearance dimensions against our reference photos. Hyosung sourced two completely different sizes throughout the carby production run.
- Download Manual: Grab your free workshop manual directly from our community forums for precise installation procedures and torque settings.
- Test the Old Coils: Use a standard digital multimeter to test the primary and secondary resistance values on your old coils before replacing them to confirm a fault exists.
Reference OEM #: 33430HP9310, 33410HP9310, 33410HP8810, 33410HN9120












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