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Hi guys

I have a 2012 ninja 250 which I have owned for nearly a year and I have clocked up 6500 miles I have a Beowulf slip on exhaust.

In the last couple of weeks it has been revving really high when cold! It ticks over fine then all of a sudden it flies up to about 6000 revs and sits ther for a couple of minutes then it dies down again. But I set off on my ride to work and it revs high again! It's that bad I let the throttle off and the bike keeps moving for about 30 yards then slows down again also when it is warm it ticks over at about 3000 rpm. Sorry for going on but I just wandered if any body could help. Ps I don't want to take it back to the dealership as they are a rip off! Many thanks Ross :)


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After reading this again, try a carb cleaning first.

I'm not sure how to adjust the idle mixture on the 08-12 250's, so let me do some research first. I only know how to do them on the 88-07 model.



 
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