Universal magneto ignition coil, compatible with the four-wheeled motorcycles of the Yamaha YFM250 and YFM660R series.

This product is a solenoid coil (alternator coil) manufactured to original specifications, specifically designed for the Yamaha TDM900 sport touring motorcycle (model years 2002–2010). It is compatible with all production years of this model (2002–2010) and optimally matched to the legendary 897cc parallel-twin engine and the electrical demands of long journeys. As an essential component of this versatile model, renowned for its reliability and comfort, this coil ensures stable and sufficient power output, eliminates charging system malfunctions, and guarantees comfort and safety on extended trips. 【Important Product Information】 Compatible Model: Yamaha TDM900 Sport Touring Motorcycle Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Important Note: The charging system of the TDM900A (2012 model year, slightly revised exterior) may be compatible, however, verification before purchase is recommended. The TDM850 (1996-2001) uses different parts and is not compatible. Engine Type: 897 cc DOHC 4-stroke parallel twin Function: This product is the main component for generating power for the ignition system. For the TDM900, a sport touring motorcycle, this product must ensure a stable three-phase power supply during frequent stops and starts at high speeds. The main electrical system includes: an electronic fuel injection system that supplies the ECU, injectors, and throttle position sensor with a precise operating voltage; a charging and comfort system that ensures efficient battery charging and powers the headlights, fog lights, instrument panel, and optional equipment such as heated grips and GPS for long journeys; and an ignition system that powers the two ignition coils. This product addresses common TDM900 problems caused by aging and damage to the stator coils: abnormal and continuous battery discharge, starting problems after several days of non-use, a noticeable decrease in headlight and overall light intensity, especially at idle, starting difficulties, rough idling and stalling due to low voltage after starting, insufficient power when operating external electrical devices, and the detection of a low or unstable charging voltage (normally between 13.5V and 14.8V).