Compatible with the professional two-stroke magneto ignition coil for Honda CR250R 2000-2001 / CR125R 2001 off-road motorcycles, original part number 31100-KZ3-J21.

This product is a high-performance, competition-grade magneto ignition coil, specifically designed for the legendary Honda CR250R (2000-2001 models) and CR125R (2001 model), professional two-stroke motocross motorcycles. It is an exact match for the original Honda part number 31100-KZ3-J21 and is an essential component optimized for the CDI ignition system of these two two-stroke racing motorcycles. Its purpose is to deliver an extremely precise and powerful ignition signal to the engine, along with increased performance. This makes it the ideal solution for addressing and improving performance issues on the track caused by the declining performance of the original ignition coil, such as high-rev misfires, uneven power delivery, and starting problems. Product Features: Professional Optimization for 2-Stroke Racing Engines: This ignition coil was specifically designed for the extreme speeds (over 10,000 rpm) and vibrations of 250cc and 125cc 2-stroke engines, guaranteeing an absolutely stable and lag-free ignition signal at high RPMs. Perfect Compatibility with Classic Models: The ignition coil is perfectly compatible with the CR250R (2000-2001) and CR125R (2001) racing models and meets the precise replacement part requirements of collectors and racers. Original Specifications and Performance: Manufactured to the exact electrical and physical parameters of the original part (part number 31100-KZ3-J21), it ensures perfect compatibility with flywheel clearance and ignition curves, thus restoring the vehicle's optimal ignition performance according to factory specifications. Integrated Sensor: This ignition coil provides crankshaft position and RPM information to the CDI system. The quality of its signal directly determines throttle response and performance characteristics. Enhanced Durability: Thanks to the use of competition-grade insulating materials and encapsulation technology, this product is shock and dust resistant, meeting the reliability requirements of professional competitions and intensive training. Compatible Models and Years (Please check before purchasing): Compatible Models: Honda CR250R: 2000, 2001. Honda CR125R: 2001. Part Number: 31100-KZ3-J21.