hey, it's the new guy again. the 98 yz400f i just bought is acting up. when i test rode it, it ran okay, but the throttle was sticking. i talked to the stealership about fixing it, and they said no problem. i went and picked it up, brought it home, and when i rode it, i noticed it wouldn't idle. at least not for very long. i drained the tank and carb, andfilled it with premium. if it's cold, i'll choke it, ()it takes a couple of kicks,) let it run a couple of minutes, turn the choke off, and give it hell. when i come to a stop, or pull the clutch in, it will run for about a minute, then it dies. it won't restart without pulling the hot start out( i am assuming that is what the other knob below the choke is called?) if i pull it out, it starts on the first kick. it will run for a minute (give or take) then dies again. i can keep it running by staying on the throttle, or by pulling out that lower knob. it acts as if it is running out of gas after a minute or so, but i don't see how it could, because it always starts right back up on the first kick,(as long as i pull out the knob.) and to add to the confusion, sometimes it will die almost immediately after letting off the throttle. but wait there's more! maybe. does anyone know at what RPM this bike redlines, because it seems like the rev limiter is hitting way early. i ask this because if it redlines way up there, then it is also cutting out at a higher rpm. it seems to do this much earlier than my ktm 520 did. that's why i thought maybe it was cutting out. if anyone knows anything, PLEASE HELP!!!!!!!