This has some thoughts on ring orientation and gap:
https://www.speedwaymotors.com/the-...all-guide-clocking-and-gap-orientation/120102
If I have enough years left to ride enough to need new pistons, I'll have to watch it again.
https://www.speedwaymotors.com/the-...all-guide-clocking-and-gap-orientation/120102
If I have enough years left to ride enough to need new pistons, I'll have to watch it again.