Hi.
this happened before my recent seizure.
after replacing the carbs i noticed that the idle adjuster was hanging off(not screwed to carbs)

i screwed it in. too much.

so when i fired her up she revved up to around 10K and stayed. i quickly hit the KILL switch.But then nuthin...it kept goin. the engine didnt cut off. all the instrument light etc were off but the engine kept goin.

I cant remember exactly what i did next. i either turned the key or adjusted the idle back down(more likely this one). then all was good.

i dont understand why the engine didnt switch off.
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Philip Ahn
MC21 NSR250R

im poor...

ooh i think thats the same as mine. maybe i should unscrew my idle screw. Now i think of it, it is seated! probably cos the old plug was so crap.