Clutch lever doesnt release clutch as soon as motor starts

[cal_tony]

Over heated my 2004 450 fse so I had to replace the head gasket. Everything fine now except I notice that In the morning when the engine is off the clutch lever is fine and clutch works.

I start the the motor and clutch lever will compress completely W/O actuating clutch. Feels like air in the line.

Ride the bike for a few minutes and it begins to work fine. It will than work fine for rest of day. Clutch never slips. It works just fine.

Next morning same thing all over again.

I checked the basket and had to clean some residue from the plates but everything looked good.