The NGK DR7EIX Iridium IX ATV spark plug for Yamaha YFB250 U Mnh Timberwolf Maine & New Hampshire 2X4 USA 1996-1997 ensures long-lasting performance and maximum ignition efficiency. Its ultra-thin iridium center electrode delivers powerful combustion and improved fuel economy. Designed for modern high-performance ATVs, it offers fast throttle response and excellent durability.