Aussie
XS650 Enthusiast
My piston rings have 75 stamped on them as do the tops of the pistons. Correct me if I am wrong but the 75 on piston would to me indicate the size is 75mm and the 75 on the ring would be the same, or would it. As I have bought STD 75 piston rings from Japan ( part# 447-11610-00 ) and the end gap is like 2mm (HUGE) but my rings with 75 on them the gap is within tolerance, under .004..... But does the 75 on rings mean they are oversize rings. ? H E L P.
Here is a pic of new ring on top of my ring.
I have a bit of smoking from left cylinder that's why I thought I would replace rings.
Just not sure what to do now
Here is a pic of new ring on top of my ring.
I have a bit of smoking from left cylinder that's why I thought I would replace rings.
Just not sure what to do now