Here's another tip, Kid.
At $16 apiece, I strong suggest you purchase at least three of these CDI units, perhaps a few more. Even the HCE units will fail. I average around 12,000 miles before one of my HCE CDI units fails. :(
However, a major contributing factor to the failure rate of my CDI units is vibration. Riding off road subjects a dual sport motorcycle to punishing vibration which can accelerate the wear of many parts, especially electronic parts such as CDI units.
Fortunately, your ZS250GS is a street bike, so your HCE CDI units might last longer than mine.
Spud
__________________
Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894