Spark plug CR9EIA-9 Yamaha YZF-R1, VMX17 V-Max, Suzuki GSX-R750, GSX-R600, GSX1300R Hayabusa

Spark plug motorcycle CR9EIA-9

NGK iridium spark plugs currently represent the highest quality technical solution.
They have an iridium alloy tip on the central electrode, which is welded in a special process using a laser. Iridium is one of the hardest metals in the world, melts at 2450 ºC, and is highly resistant to spark erosion; these are the spark plugs used in MotoGP and Formula 1. This material allows the service life of standard spark plugs to be doubled.

On the other hand, the precious metal allows the central electrode to be considerably thinner (0.6 mm thick), significantly reducing the required ignition voltage and helping to improve the distribution of the flame front in the combustion chamber.

For the following models

Daelim
S3 250 Fi Advance 2003-2017
S300 250 Fi 2013-2017
VJF 125 R Roadwin 2007-20017
VL 125 Fi Daystar 2008-2017

Honda
CB 600 F Hornet 1998-2015
CB 650 F 2014-2017
CBF 600 N 2004-2007
CBR 600 F 1991-2013
CBR 650 FA 2014-2017
CBR 900 RR Fireblade 1992-1999
VFR 750 F / R 1988-1997
VFR 800 1998-2001
XR 250 R 1996-2004