I have yet to warm up a car/bike with set tolerances needing to burn down the riding hours ????

I never understood the many assholes [don't put yourself there if you are not one if them LOL], and no, you could not cut down the emissions, obviously. A tank full is a tank full. It's your beard growing gray you sit your life away not riding. A more air kind of mentality told you that fallacy. You've got the worms, I've got the hooks.
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Ring gap is between .008" to .015" and this is for the evo's compression ring only. 'Wear' we at with this one ring?
What is the piston to wall clearance?
See, I'd just change all the gaskets from the base on up. No new pistons or nothing. Why? Because it didn't smoke. I'd use the same rings over again. I wouldn't hone the cylinder. The smoother the finish, the better the seal.
Now, you take a bottle brush to that, you make ball tip lines all up and down the bore. You missed some of the surface, you still do not make a flat contact, but create more gullies or troughs than seeing the rings. It needs a constant flat spot, not roll over a gouge then seal over a flat [un-balled part] of the wall again.
Without a snap bore gauge, or a bore gauge itself with a dial; you are better off seeing that gap from bottom to top more accurately and faster with this style measuring tool. You go taking a feeler gauge to parts and come up [within tolerance], it goes back together. It didn't smoke then, it should not smoke now, sans the bottle brush attack and leave that for squidshit.
Signed,
NOLTT (no one listens to turtle)
ZX 14 Compression Test - YouTube < This is more about wall damage vs. someone with less mileage, ran stock air cleaners and came up with 187 psi. Ain't no lie, now don't chew know I come withe goods like compress your ride, because down the road you are just a spot in the mirror, otherwise; is dis wise guy letting you knowattsup. :up: