Piston cylinder clearance

I'm in the process of going 1 over on the cylinder of a 1975 Honda XL125. I can't find the piston to clearance specs anywhere. 

I'm hoping someone in here has an idea what the clearance is. I'm thinking it's somewhere around .0004 with a max of .0012.

Any help is appreciated. I just got the bike and haven't acquired a service manual yet.

Thanks for any help.

Approximately .05mm - .07mm / .002” - .003” measured half inch up from bottom of the skirt.  Shade tree rule is .001" per inch of piston diameter.

Edited by Jimmy Pascol

Thankyou for the answer.

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