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huskyboy

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Wow, I've never seen a C jug before. Wonder if you will need a special piston!
C is the largest piston jug. B piston can be used in C and A, but C cannot be used in A supposedly. I have a B meteor piston in a A jug on a 394, works fine. There was A, AB, B and C I believe.
 

huskyboy

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C is the largest piston jug. B piston can be used in C and A, but C cannot be used in A supposedly. I have a B meteor piston in a A jug on a 394, works fine. There was A, AB, B and C I believe.
I almost wonder if using the next size larger piston is a benefit in a well worn or scored and cleaned up cylinder?
 

MG porting

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Anybody experienced a motor not running "free" due to a slightly large piston? I've read that .002" - .003" is good. Wondering if under that might cause a saw motor to be a dog
Yes do to the lack of a good seal of the ports there's also the fact that it would have bad piston slap and that's never good ether.
 
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