ORIGINAL: jentzsch
Anyway, got back to the pits and looked things over... the throttle barrel was like "jammed" and was not moving at all, like it is out of round....
Does this engine happen to be a Super Tigre? My old .45 did that and I've heard several others complain about the same problem.
I also had a Throttle arm come off of a Magnum .46 carb several years ago and full throttle. It seems like the thing will run forever when you want it to hurry up and quit.