Sounds like your first NSR ownership isn't quite going to plan!
We'll need a bit more info to help you, such as:
What speed / revs were you doing?
What jets are you running?
What modifications have been carried out that you know of?
What spark plugs are fitted?
Is there a filter fitted?
Have the carbs been cleaned?
Is there plenty of oil in the two stroke tank?
Answer that lot and we'll get back to you!
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MC21SP Plaything
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