[Ridered58]

I was riding about three weeks ago and it started just fine and was idling normally. Towards the end of the ride I noticed it wouldn't stay idling.I adjusted the idle screw a hair and it seemed to run better. I went to start it up again this weekend and it still didn't want to idle. I have read on a couple forums that I could just have a clogged fuel filter. Has anyone had any similar issues or have any advice? It's greatly appreciated! I changed the spark plug thinking I might have fouled it but that didn't do anything for it. Maybe valves need readjusted?