How do you guys feel about this cylinder?

[j mcq37]

I got a chance to look into the engine today on my snowmobile as the Mag side looked good this is what i found on the PTO side. Let me know what you think

 

[Prime]

Looks like there has been some port work done, sir!

 

[Braaaptor]

Nice triples! Plus, that top end looks to be very fresh since the hone marks are still present. Won't be needing a rebuild for awhile (hopefully!) on that one!

 

[j mcq37]

Good, I was worried that that the dark streaks indicated high temps or loss of lubrication.