piston bore clearance 1991 250

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Ma77
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piston bore clearance 1991 250

Post by Ma77 »

after some help from the kdx experts....please.

The piston is new and i dont know what the clearance should be or where to measure it from (pistons are tapered) as i think the bore is worn.. dont know what exact size that should be either or what the wear limits are.

I have 0.003" of clearance between the piston and bore at the piston skirt and 0.009" of clearance just under the ring groves.

what should the clearance be?

thanks in advance for the help!
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