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Title: 72 125 Piston size
Post by: paul on October 07, 2007, 01:14:56 PM

Hey, The top of my 72 125 piston says 53.93. Is this standard bore? Hard to believe after 35 years that it is still useable. Does anyone know what the clearance should be between the piston and bore? Thanks much for the help, Too Tall Paul

Title: 72 125 Piston size
Post by: jj on October 07, 2007, 01:38:23 PM

Paul

Technical info on your clearance question can be found on the Penton parts site:

http://www.pentonpartsusa.com/

John J Slivka

Title: 72 125 Piston size
Post by: paul on October 07, 2007, 09:33:40 PM

Thanks, it says stock bore is 54 mm and with clearance that would be right. I was told that it had been bored but that is not correct. guess thats better than being bored to the max huh. TTP

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General Discussion => Penton Talk => Topic started by: paul on October 07, 2007, 01:14:56 PM