ninja 500r fuel pickup problem
so i have a 2003 ninja 500 and a fuel problem has just arose. so i was driving along and my bike started to sputter really bad after about 100 miles, i thought i was out of gas so i turned the petcock to reserve and it cleared out so i could make it to the gas station. once i got there i noticed that i wasnt out of fuel, i filled up anyways and threw it back over to the regular on setting.
just a few feet down the road though it started to do it again and this time died almost right away, i put it back to reserve again and after turning it over for a few seconds it started back up and was running fine.
so im wondering, is the regular fuel pickup, and reserve pickup, two complete separate lines? could the regular one be clogged and not letting fuel in? or could it be something wrong with the petcock? or anything else?