For Yamaha YZF R6 2003-2017. For Yamaha YZF R1 2002-2006. For Yamaha YZF R6S 2006-2009. - Replacing a motorcycle ignition coil is usually necessary if you're experiencing certain symptoms, like Backfiring, Hard starts, Loss of Power or Hesitation, as the ignition coil plays a critical role in the starting and running of the engine.
