Messing with vanguard today it appeared the throttle\governor mechanism was in a distorted shape so I grabbed hold of it and straightened it to the sound of poppoppop, dislocating my ring finger and pulling that little muscle between the palm and knuckle. Luckily my finger was bent when it occurred and I instantly pulled it back into place.
It's OK though swollen and sore with about 2\3 movement but OK.

Sucks getting old! BUT, better than not!