Is that an intake port in pic #4? Two Stroke and another couple thousand RPM?
I am not sure what you are mistaking for an intake port, that is a cylinder barrel, the ports are in the cylinder head. It is a four stroke. Here is a pic. of the top end complete if that helps. The length to be bored is around 200mm.
Last edited by tonyfoale; Dec 16, 2016 at 02:36 AM.
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