My bike is a 1998 kx250
so today I was riding and I was hauling ass in 3rd gear and go to slow down ( still in powerband) and I pull the clutch in, and it starts reving on its own, then the revs get higher so I hit the kill switch and held it for about 2 seconds and I thought it was dead and I let go and it tried reving again so held it till the bike stopped ( put it into 2nd or 1st).
this only happens when I pull the clutch in.
I had plenty of gas so didn’t starve.
my coolant needs to be redone soon though it’s pretty bad.. could it have Dieseled? But if so, why only with clutch pulled in ?...