Keihin Honda NSR250R Carburettors MC16 which I believe is 1987-1988 but please ensure from information given and photos that this is suitable for your exact year and model 

Stamped TA10 

Complete condition with everything working as it should , nothing is broken , missing or seized 

Jet head slots are marked but jets are all moving freely and not seized , float bowl drain screws are turning freely 

Please message me if you require any additional information 

SL U3