Help 61mm bbk too much pressure oil leaking.

[James2132]

I have a taotao 150cc scooter. I just installed a ncy 61mm bbk and after a few minutes of driving I have oil spraying everywhere! The scooter bogs and shuts down. So I just reinstalled my original 150cc piston n cylinder back in till I can get some help. I'm thinking the problem is too much pressure. I bought a ncy decompression tube and there's still too much pressure.