Scag Turf Tiger w/ Kawasaki 22.0 FD661D went to full throttle with no warning- is that a Governor issue? I ask b/c had it happen once on an old cub cadet and I just about fell off backwards when it took off full speed while mowing. With this mower, I had disengaged the deck and was moving to another area when it revved and I could not adjust it with the throttle lever. I don't know how to adjust the governor, if that turns out to be the issue, and I don't have a service manual for the engine. But I think I can work through the disassembling of the engine, checking governor springs, etc...but adjusting the governor, not familiar with that area. Any help would be appreciated.