hey guys, i got my first bike a 76 xs360. when i bought it, it ran good, i rode it for a bit then i put new handlebars on it, and it went haywire. the idle would rise uncontrollably. i put the original bars back on, cleaned the carbs, put in a new battery, changed the oil, but now the bike idles poorly, and the idle still climbs. sometimes it idles fine for a bit then dies, sometimes it idles for a bit then slowly rises, sometimes it idles very high very fast. I can't seem to get a handle on things! any ideas you guys have would be much appreciated!