If it is the rotary breather, make sure it is timed right with the dots lined up etc.
If it is the reed breather, make sure it is not possible to fit it in back to front.

 

Update: When I started this project, I took cylinders to a local machine shop and requested that cylinders be bored out .010. The shop recommended using Wiseco piston that they will order. As agreed, the shop ordered new Wiseco pistons and bored and honed cylinders. However, due to cylinders condition, the shop claimed they had to bore-out cylinders to .020. Afterwards, I re-assembled engine and started encountering numerous oil leakage problems.

Today, I contacted Wiseco and explained my problem. From this conversion, I discovered the following facts: The Wiseco pistons the shop ordered are part # 4724P1, which are fitted for cylinders bored over .010. The correct pistons for cylinders bored over .020 should be 4724P2. Therefore, it appears these cylinders are over bored for these pistons.

At this point, I am thinking of discarding cylinders and start shopping for a new a cylinder kit. Any recommendations?

 

Why not just get some 20 over pistons?

 

I may contact another machine shop to determine if existing cylinders can be honed for .020 over pistons.

 

If cylinders are already bored at 20 over and aren't all scratched up then I don't see a problem.

How many miles do you have on current configuration?

The best thing you can do IMO is open her up and look at the cylinders and see what condition they are in before just buying new ones.

 

that is messed up you cant bore a cylinder without piston in hand. to get the clearance right and ill bet they didn't use torque plates. and if they bored .020 with .010 pistons they would rattle bad.
I would take them to a machine shop that knows how to bore a evo cylinders

 

Torque plates are a necessity!

 

Could you tell me the location of what bolts to where? i just put my camchest back on and could not remember where the longer bolts went so i guessed. havent fired it up yet. Maybe this could save me unneeded new trouble. Thanks

 

I am referring to the top bolts front and rear of the cam cover.
The longer one goes to the rear.

#15 on OEM manual page 3-43 (at least in mine).

I hope this helps.

 

I'd pull it down and take them into a reputable machine shop that does motorcycle cylinders and find out where you are on it. Then buy the appropriate piston/rings for it and re-assemble it..

While you are waiting, I'd go revisit the original shop and get my money back for the original work done showing them the wrong pistons bought for it. Hopefully for you, they will balk and you can school them a bit..

LOL..

Griz