I have a stock 2007 GS500F but am having trouble getting it to idle correctly. The first thing I did was break down and clean the carbs out (all jets) which helped greatly as they were very dirty. My friend suggested getting a gas filter which will come later hopefully. The problem is when I get it idling at a steady 1200 rpms then give it gas and left off the rpms stay up then slow down and it dies slowly. Vacuum leak it what I am hearing but looking for all possible ways to fix and check for a vacuum leak. Any advice? Thanks