Yamaha BW'S 100 Axis 100 Stator coil, 100cc ignition and charging coil, meets specifications, original spare part.

This product is an OEM-compliant magneto-stator coil assembly specifically designed for the classic Yamaha entry-level motocross motorcycles TTR125 and TT-R125 (including derivatives such as the long-seat LE version). It covers the entire production run of this model from 2003 to 2017 and is a vital electrical component for this small four-stroke engine, renowned for its reliability and robustness. It incorporates generator and ignition trigger functions and is specifically engineered to address common issues such as starting and charging problems. It is essential for restoring this motocross champion to its full potential. 【Important Product Information】 Compatible Models: Yamaha TTR125 / TT-R125 motocross motorcycles, including standard, long-seat (LE), and electric start (E) models. Wide range of compatible model years: 2003 to 2017. Important note: Older models (2000–2002) may have different versions (part numbers starting with 5JH-) and are not compatible. Please check your vehicle's model year. Corresponding OEM part number: 5HP-81410-XX (XX is a specific suffix; this product is a universal replacement part). Engine type: 124 cc single-cylinder, 4-stroke, air-cooled, single overhead camshaft (SOHC). Function: This product is the central component of a magneto ignition system and consists of two functional coils: Generator coil (lighting/charging): This generates the AC current for the headlights and taillights and charges the battery (on models with an electric starter). Ignition pulse coil (trigger): This provides a precise crankshaft position signal to the CDI unit, thus controlling the ignition timing. It is essential for starting and running the engine. Specific symptoms of a fault: This product helps to correct common faults due to a damaged stator: inability to start the engine (kickstarter or electric starter are ineffective, spark plugs do not ignite); starting difficulties, rough idling, misfires or stalling during acceleration; faulty or unusually dim headlights (lighting coil failure); in models with an electric starter, the battery does not charge and discharges quickly.