With Alan Core's help we syncronixed the engine carbs. Removed the carbs to adjust the idle mixture and the idle setting per the Rotax carb sync instructions. Had to remove the carb filters to get the carbs free. Followed the pnuematic carb sync instructions with little to no adjustment needed. Did a WOT wide open throttle static test and got 5150 RPM. OAT was 28 degree C and 29.95 pressure. Alan used a Fluke meter and pressure sensors to do the sync.