newbie needs some help!!!

[sandking11]

hi all, i recently bought a 03 ec300 which im having some real bother with the handling. after years on 500cc 2 strokes i thought id get a modern 2 stroke thinking that it would have most of the power (which it has) and would run rings round the old 500 (which it doesnt)
i do push the front hard but the front would just wash out on me. after about 5 near misses the gasgas finally bit me and it hurt!!!
i love the gasgas but i cant keep a bike i dont trust. can anyone either help me with a baseline setting or even the factory setting so i can work from there. i weigh 75kgs and the bike has wp forks and ohlins rear shock.
thanks in advance for your help