Funny you mention spark plug change issue. I took my down to the frame and changed the sparkplugs and oil last. Put it all back togethor. Now when it starts it revs to redline and keeps on accelerating till it dies or i shut off. Lol. Im assuming mine is a pinched cable or maybe throttle cable according to some friends advice. Will take apart again and redo.
**Sigh, i just want to ride again**