Over the years kohler has changed things as you know.
I doubt they have rings for an old style piston (but someone might)
Most ppl replace the piston and rings together as they wear together.
If you insist on "freshening" the cylinder as you say, without going oversize
or at least going with a new piston and rings, you might just clean the carbon on the head/piston and leave it be.
When going to a new piston/rings that is of standard size. you do not want to "
hone" the cylinder as it is already worn bigger than it should be.
A light
deglazing is advisable as it makes a light cross hatch pattern in the wall to promote new ring sealing.
But remember the old rings are conformed to the out of round cylinder.
and the new ones are perfectly round, and it could use more oil than it did before till the rings are seated.
And if there is any ring groove at the top of the cylinder, that is not removed,
at minimum the top ring is going to be flexing badly and at worst it will break.
There are suppliers out there that sell STENS which are good parts
As well as venders like "I save Tractors" and the already mentioned "bakt4kids"
just trying to be helpful here for those that might not have been around when we actually rebuilt things and not threw them away and they worth rebuilding.
