leaking oil

just did a top end and put in a new honda head gasket and base gasket . at idle and reving when watching i cant see anything. but when riding real hard for a while the cyclinder and top of cases have oil on them did i forget some thing thanks

could it be where the exhaust mets the cylinder?

Yes, I have seen a lot of oil in that area. What would cause that?

a bad seal around the pipe is one. 2 you could have lost the gasket between the pipe and the cylinder

[400MXer]

is this on a 250r or 400ex or ect.

its on a 87 250x

[400MXer]

there is a gasket on your exhaust port. that goes between the head, and your header. but oil should not becoming out there, that mean's that your pulling oil past your rings. Does is smoke at all?