Did a compression test today, gave me 210 PSI with no air filter, WOT and 10 full kicks. Definitely time for a top end goes I. I bought hte bike from a dealership with a claimed 10 hours on it, I have put on an additional 24 aleast 20 of which are well thrashed hours. I don't trust other people with my motors so I ordered in a full top end from the small end on up with gaskets and will hopefully be here next week. Have to give tomorrows practise a miss though
What I need though is some other opinions on my cylinder. I'm fairly certain whats shown below is ring blow by from the excessive hours on the rings because I can't feel any change in teh surface and I ran my cylinder bore gauge over it aswell and it gave no different readings. Theres a little bit of ring blowby on the piston aswell, but no score marks to match the cylinder, hence my conclusion. But I'm still quite new to this game and don't know very much so any opinions are appreciated.
Wash pattern:
General look:
Close ups:
Cylinder:
Cylinder other side:
Thanks in advance for any advice.