i have a 02 f4i ive had it about a year and never had any problems with it. just the other day it started doing this wierd thing. if ive been riding the bike and get off of it and it sits for just a little bit and i get back on it. i hit the start button and it cranks and cranks and wont start till i rev the bike up. bike starts perfect if its cold. or if i kill it after ive been riding and then i start it right back up its only when it sits for a little bit. ive noticed it to be anywhere from 5mins to an hour. if any one knowswhat this is please let me know. i was thinking about doing a complete tune up but my spark plugs arent that old and i just changed the oil like 1500 miles ago. thanks

 

no one has any ideas???