[hakachukai]

I had this problem with a Honda right after I changed the head gasket.

When the engine is cold, the head gasket is leaking a little bit. Once the engine warms up, the gasket swells, and stop leaking.

The trick is to figure out what kind of smoke you are seeing. Because it might not be the head gasket, it might be a valve seal, or piston ring, or something else.

You need to figure out if you are burning oil, coolant, or just too much gas.