Boy was it ever tight! Took both little covers off and sprayed some PB Blaster in there, as well as externally. It was a bear to loosen up but was finally able to get it free enough to operate with the lever (which was disconnected, BTW). Got the tractor unloaded and even used it to push another tractor (a Kubota which I bought for parts earlier on my trip) into the barn out of the weather. Hopefully it won't be too long before we can get the YM2000 up and running properly without smoking, but gotta few other things to take care of first.
Another topic, but it looks like my alternator might be bad.
Another topic, but it looks like my alternator might be bad.