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Old 11-06-2012, 10:15 AM   #58
Aspiring human
Zombie_Stomp's Avatar
Joined: Jun 2007
Location: SE Portland/ Carrboroland NC
Oddometer: 2,236
The rings don't really rotate. There isn't really any force in the engine to rotate them. We are always advised anywhere we look to position the ring end gaps away from each other to minimize blow-by, why would that be done if the rings rotated? I think every time i have disassembled an engine, the ring end gaps have been away from each other, as installed. Some pistons have a positioning pin to keep them from rotating, but any rotation of a piston ring is like 1mm per 60,000 miles.

And yes, in the case of a piston that has not seated to it's freshly honed bore, sure, maybe skip the hone and new rings. But if the bike has a thousand miles on it, this has been seated and worn to a shine and needs replacement.

We'll check for smoke and compression!
1982 4x4 longbed, a rolling daily driver work-in-progress...
1987 Yamaha XT600 2KF (German)
STOLEN: RED XL600 in Portland

I do heavy-duty textile repair, upholstery, and design/manufacture bags.
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