WTG, Glad you found a logical explanation. Blue Heron is right on - Bigshrimpin is a motor-geek. Notice the logic he presented in his assessment. Catches a lot of fish, too
The fuel issue didn't seem right because you had mentioned all the fuel work done so recently.
The throttle cable could have been stretched (maybe in moving) and thus toast, or possibly a connection or screw came loose as Blue Heron noted. Nice to have a little helper around to move the throttle for you

. Good luck and let us know what you find. See you back at 5200 rpm in no time. PS manual on ebay out of NM for 19.95 or make offer ...