First set your float level correctly. I run my float level on the low side to get proper idle on downhills and reduce fuel overflow on steep downhills. Others have done likewise.
Are you a do it yourself jetting person? If so, look at the jetting database to get ideas of what others have done. Most effective for trail riding is often the single taper needles and the appropriate pilot jet & main jet. As a note you currently have a triple taper needle which tends to run richer at low throttle near idle.
If you are not into do it youself jetting, then the best solution is the RB Designs carb mod. It will fix your idle issues.
