Hi there! I have nsr250 mc16 and my problem is that the bike hunting(mess) between

7000-9000rpm and make detonations. The problem intenece at hight gear 2nd+. When the

bike is cold seem to work without problem for 2-3min. Anybody who knows what's going

wrong? (carb,cdi or something else?)

Sounds like youre very weak for some reason. If you mean the bike is pinking under load (like going up a hill) and its worse in higher gears try leaving the choak on alittle and see if that helps. If it does then you know you need to set about re jetting the carbs and/or giving them a good clean out.

Another good way to tell if your lean is if the bike starts to loose power, try rolling off the throttle alittle. If this helps and the bike starts to pull stronger again. Youre lean lol
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If I have to take the carbs off once more...

First thing is to remove the spark plugs and have a look at the colour. I expect you'll find them quite white. If you can, take some pictures and post them on here so we can see.
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