It’s tempting, but the oil ring looks a bit suspicious…… https://www.ebay.com/itm/295391174760
Other 1985 Honda Xr80 restoration thread!
- Thread starter MrMan
- Start date
No excuses , do yourself right .
Don’t worry, top end is getting an overhaul.
That's a ton of oil on the top of those piston rings!Sick. Cant wait to see.
It could be valve seals or piston rings.
-BIG DAN
You should at least check the ring end gaps.
I like to use a telescoping gauge for bore inside diameter readings.
-BIG DAN
No joke! When I pulled the head off, I wiped the cylinder out just to be sure, then I rotated it. And my mind went:That's a ton of oil on the top of those piston rings!
You should at least check the ring end gaps.
I like to use a telescoping gauge for bore inside diameter readings.
-BIG DAN
But anyway, I’ll check the end gaps, and add that to the list of tools to buy someday
If the hardened rings are worn ............
Ring end gap was 0.7mmThat's a ton of oil on the top of those piston rings!
You should at least check the ring end gaps.
I like to use a telescoping gauge for bore inside diameter readings.
-BIG DAN
Yup..
I measured the bore the best I could with the caliper, and it came to 48mm. So I thought; ok, I probably just need to get a +.5mm larger piston. But then I find out it already has a +.5mm Wiseco piston…. 
(a rather beat-up one at that)
(a rather beat-up one at that)
