archie2133
New Member
Hi guys,
Im wondering if you can help me. Im doing a top engine rebuild on my 1975 Honda Cb750f and I'm changing my piston rings.
Upon pulling the pistons out I found that the bore measures 65mm and the pistons are stamped "STD" for what I assume is standard.
When consulting my work shop manual it states that the bore and rings should measure 61mm.
Im guessing these pistons aren't from the original engine abd that the head has been bored??
Should I just leave the pistons and buy 65mm rings to suit??
Thanks
Archie
Sent from my SM-G965F using Tapatalk
Im wondering if you can help me. Im doing a top engine rebuild on my 1975 Honda Cb750f and I'm changing my piston rings.
Upon pulling the pistons out I found that the bore measures 65mm and the pistons are stamped "STD" for what I assume is standard.
When consulting my work shop manual it states that the bore and rings should measure 61mm.
Im guessing these pistons aren't from the original engine abd that the head has been bored??
Should I just leave the pistons and buy 65mm rings to suit??
Thanks
Archie
Sent from my SM-G965F using Tapatalk