This is tough because it has been sitting a long, long time. This 650 needs more attention than most mere-mortal mechanics could faithfully expend. Still, I hesitate. There is an obvious alternative, but the thought of parting out this old BSA brings a tear to my eye. It seems a shame for it to disappear into parts bins. I can only hope somebody with the right talent and energy will bring this old family member back to the street.