When I first pulled this cylinder head I thought a little corrosion on the bores. I don't know if the photo quality will show the etching & pitting in these cylinder bores. You run your finger over it & you think there is no way the rings will seal...it is very rough. This is a mountain sled & probably in 3000 km area. I'm curious if this is common with bore finish & if anyone else has seen this.
No complaints from the owner how it runs. BRP oil & it uses it. I suspected power was down when I clutched it last season as it would not run how I normally set them.