cylinders

I got some new .5mm oversize pistons and rings (second oversize) for my xs650. What should I have my machinist bore my cylinders to? This is the first time I am having this work done and I am unsure of the correct tolerances.

Certainly not a new topic, but I'm trying to appraise the condition of my pistons, piston rings, and cylinders. First, I want to replace my piston rings, but am unsure what size/dimensions I need. The local Yamaha dealer wasn't much help since their computer database archives nominal sizes...

hi all ! i now have in possession a 1980 xs650 . I was told it needed a little work when i got it, and the more i am working/learning on it, just turns into more work. i have the time right now, but not the money. hoping for some sage advice on the best rout to take with my cylinder . it...

So I've got the pistons hanging out of the bottom of the cylinders and the cylinder block abt two or three inches down onto the studs and it has become very difficult to get the block to slide down any further onto the studs. I tapped on it lightly w my rubber mallet but it doesn't seem to want...

Hi people, I'm looking for some guidance about pistons, rings and bores that I can't find in the many threads I've looked at on the subject. What a ton of great resources out there for this bike. A friend & I pulled the jugs on his 79 650 Special to do the base gasket, cam chain guide, valve...

Is it safe to powder coat hubs? I know plenty of people do it but you need to heat the parts to about 400+ degrees during the process. I've read that it's hot enough to do something to aluminum hubs and will slightly weaken them. Also, I've read you shouldn't powder coat cylinders because...