Spark plug problems

[sx 250]

Hi guys, i have a 2002 sx 250 and it randomly dies after riding and I cant start it again. I check the spark plug for a spark and it is either very weak or non existant. I have put in new spark plugs and it goes but then dies again. Iv taken it into boyds and they cant find anything wrong. The only thing i can think of is that the bike is eating the plugs or a CDI/stator problem. Also it only seems to do it at a low rev but im not completly sure. maybe I bought a lemon!!! Any help would be appreciated.

[98tls]

Possibly the coil if things go bad once its warm.

[sx 250]

I suspected that at 1st but had temporarily put a boat coil in to see if it was but still wouldnt go

[sx 250]

started bike today, took a few kicks, it stopped a few times but after playing with kill switch it went again, not exactly sure if that was the problem yet. hopefully it is.

[quickbuck]

started bike today, took a few kicks, it stopped a few times but after playing with kill switch it went again, not exactly sure if that was the problem yet. hopefully it is.

Could be.
Your kill switch works by EARTHING OUT the ignition.
So if there is a break in the wire that is touching the frame... then you get the earth that will kill it.