cuchulain

Bought a 2003 rev 3 200cc on friday , going well. Went to ride it today , got 10 mins on main fuel position then starved itself and died (tank was full , choke off) . No kicking would start it. Put it to reserve tap position , runs a dream , for as long as i like (running it on main position starves itself after 10 mins) . 2 problems .... 1 : If i run it continually on reserve it leaks from the carb (might do the famous mods stikied here) (However when it runs for 10 mins on main it doesnt leak ....) 2 : it wont run for more than 10mins on main position. Is it just the carb or is the fuel tap knackered ???? Thanks

Been riding on roads for nearly 20 years. i've decided to get a trial bike , and try to enjoy the new way of riding. Picked up a 2003 200 Beta rev 3 I've only had it a day , and got a chance to play in an industrial estate nearby. i'm still new to 2 stroke and havent kicked a bike in years , so thats starting to come back to me. Looking forward to the craic here. Cuchulain