Hotwheels

I've bought a brand new 2007 WR250F last weekend - running it in gently around the lanes and it's developed very bad clutch drag after about 20 miles. Took it back to the dealer who changed the oil and said it would be fine. However after another gentle 23 miles we're back with very bad clutch drag, i.e can't find neutral with the engine running, also bike creeps when in gear and clutch engaged. Supposed to be racing it on Sunday, any ideas, anyone? I'm desperate! Obviously it'll have to go back to the dealer again (another 3 hour round trip) but he doesn't seem to have a clue!