Carburetor vs carburetor O.P. kit?

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10/16/2017 11:56 AM

I was looking at the parts assembly for my carb on my 2001 Honda cr125 and it had 'carburetor' in one category and 'carburetor O.P. Kit' in another. What is that??

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10/17/2017 7:28 PM

optional parts?

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