reposting here for guidance

went back in snooping around with the endoscope to make sure nothing was wrong. might seem **** but, i'm trying to learn as much here as possible before moving on to the next project.
back story: https://www.hdforums.com/forum/sport...orking-31.html


plugs look better now, not all browned out like before.






looked in the rear cylinder first since that was where the ping was coming from when i listen with the mechanics stethoscope... saw scoring and started to freakout. then checked the front and saw the same... will this stuff go away or is it a problem? still only 150-170 miles on the bike

the 2 solid marks are at the gaps where the top oil ring is. that shouldn't be touching the wall with much pressure.





rear:

orientation
(FF) <-- (RR)



front:

orientation
(FF) <-- (RR)

 

Looks pretty normal to me. Remember the cylinder isn't perfectly round so the rings touch at different spots. I had lines like that after just turning the motor over by hand on a rebuild. The rear cylinder does have one line that's pretty thick though.

 

****? Yes. Visual issue, none. Plugs look lean.

 

plugs do look lean.not really liking all the oil on tops of pistons either.ide do a leak down

 

One of the concerns I'd have is these horizontal lines.. Looks like the cylinder was bored too close to the final size before honing.. All of the tool marks weren't removed..

 

that looks better than it did last week after the first ffew miles.

i'll grab a LD Tester later today.

 

I can do a global fuel increase to enrich the mixure. 10%, That sound smart?