moped jetting

I have a `1980 honda express with a 65cc big bore kit on it. I found that you need to drill out the jet to a #81. But when I went to a hardware store the only thing i found was a .0810. Is this the same thing. If you have any info on what size to drill out the jet because you have done it or know anything about the sizes please if u could share them i would greatly appreciate it

thanks geoff

Re: moped jetting

Richard Wisniewski /

is that in inches?? or mm?

Re: moped jetting

it says .0810''

Re: moped jetting

The number on a jet may or may not correspond to a number system. I think they usually do not.

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