... lol ... this is about what you have to expect when you buy someting from an un-knowledgable owner off ebay.
You almost have to expect something to be wrong... and there was...
I would bet $100 that the previous owner bought a nice PA50II .. (that only showed 68 miles on the Odo... then stupidly did NOT mix oil in the gas... because this motor is in beautiful shape otherwise... the top and bottom of the piston are basically spotless .. which means it barely ever ran.
The exhaust side of the piston has had a major seizure and scuffing... I bet they were freshly done .... (or maybe now that I think of it... the ORIGINAL owner seized it 19 years ago?... and thats why it only has 68 miles.. then sold it too the guy who parted it out)
Whatever... I am going to try a quick 'sand the scuffs and and hone the cast iron cylinder'... then see how it runs... (1 ring smeared over too... barely... I was able to save it.. I think).
I found this out because I wanted to try the II cylinder out with its different porting... to see what its like.
... aaah well.. wasn't too surprised to see the seizure... though at first I thought the motor looked mint.
... I might have to finally break down and buy some gen-yoo-wine Honda parts pretty soon.
Anybody ever checked to see if Honda offers oversized pistons and rings for a PA ?
Somehow it sticks in my mind that they offered one oversize... don't remember where I got that.