28 degrees total advance is generic for all gas two-stroke model engines, you can go slightly more but it will not incrase power much and you run the risk of detonation. 28 is safe.


If you have never timed the ignition before, here is a good description of how it's done. This is how I time my C-H converted G-62's


http://www.ch-ignitions.com/CHinst.html


Mike