u/Interesting-Twist260

I an rebuilding a 2012 cbr1000rr and i bought a new oem oil pump. It has yellow film of oil on there, do I need to clean that?

I am doing a rebuild on a 2012 cbr1000rr engine with 90000km, and I followed the service manual and measured all clearance with feeler gauge and straight edge, and they are all within spec. However, it says to change the oring and inspect the oil pressure relief valve. I dont see the oring or the valve itself on honda's parts catalogue. What should I do?

I am doing a rebuild on a 2012 cbr1000rr engine with 90000km, and I followed the service manual and measured all clearance with feeler gauge and straight edge, and they are all within spec. However, it says to change the oring and inspect the oil pressure relief valve. I dont see the oring or the valve itself on honda's parts catalogue. What should I do?

Hi, I am rebuilding my 2012 cbr1000rr with 90000km, and cylinder 1 has a vertical deep scratch, and cylinder 2 has scoring. I took it apart because spark plug ground electrode from cylinder 2 came off and cylinder 2 has 80 psi of compression compared to 130 to 140psi in 1 3 and 4. I am going to send cylinder head for a valve job, buying new wiseco high compression piston, but I am clueless of where to bring my clinders too. Since it is nikasil, it cant be hone. I am based in perth, so itll be good to how where local shops do them. Otherwise I might have to send my cylinders which is not preferred. Cylinder 1 looks like a piece of piston rings broke off and scratched the walls and piston but I cant see anything wrong with the rings. Also, carbon buildup is intense around the intake valve side, so I suspect the valve seal is blown in the intake side. What do you guys think? And let me know if you have some useful information. Thankyou!