I just discovered the hard way, a potentially dangerous floor in the Dellorto carby. The little guide pin that keeps the slide square in the bore, can come lose and 'fall' back out of the carby housing. This caused my throttle to jam wide open....in my driveway.....between the house and the missus's car

needless to say my bike attempted to commit murder/suicide on me. Result, destroyed lower faring, chewed up chain (100 pieces) external scratches to the clutch housing....and 2 injured legs

Hope i can make it out there tomorrow
Photo's later.