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Engine smoking

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yozzer74:
Hi I've just done about 20 miles on bike noticed she smoking a lot .I thought it may have been because of just rebuilding engine .but I think it's getting worse .it's kicking a little oil out of the breather pipe on crank case too .video attached https://youtu.be/jGkBzsxAnXE

yozzer74:
Any ideas what's wrong

philgresty:
looks like piston ring blow by to me. did you replace the piston rings with the rebuild?

yozzer74:
Yeah I changed rings new valve guides seals recur seats

MrDavo:
The rings might just need bedding in, don't tear it down again just yet.

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