I have 70 hours on the XT2 SLX50 with EFI twin an so far no serious issues. Figured out the quick release collars.
When I am mowing with the throttle wide open (as directed) the engine will randomly drop rpm by 30% for a second or two and then recover. It usually does it twice inside of 15 seconds and then all good for another 15 minutes or so... and then does it again. I suspect it has something to do with the computer periodically testing the oxygen sensor/mixture or something.
