Pics of plug,
EVO if you were to put THAT plug in now would the bike run ?
Nope, it's been out of the bike for about 2 weeks, but still no spark.
Although I might try OTH's tip and try and clean the deposits off the insulator.
Just asking because I once bought a nice little 86/125 KTM from the bike shop but it was too cheap.
After about 1/2hr it would stop running.
Let it cool down and it would start , run for 1/2 and stop again.
The previous owner had sold it cheap out of frustration.
He had also zip tied the kill switch wire to the top radiator hose.
Snipped the zip tie and found a nice short
, ran great after I fixed that one.
If that plug will not spark but another one will then the problem is the plug , maybe try another brand , non resistor, different heat range ?
I have seen boxes of Champion resistor plugs die because of moisture in the powder that they used as a resistor , back when they first came out.