Items #2, 3 and 6 in the side cover diagram below. Don't need to be pretty! Thanks!
http://www.cmsnl.com/yamaha-xs650-b-1974-1976_model8524/partslist/F-05.html#results
http://www.cmsnl.com/yamaha-xs650-b-1974-1976_model8524/partslist/F-05.html#results