i think the 10mm rotor bolt. and one of the bolts on rear of case that bolt cases together.
i just went to "Production Models" in the website. an incredible amount of great info on engines i loaded back in the day. and a huge THANK YOU to Chris for loading all the chassis data.
here's what i logged on the rear case bolt.
Bolt, hex 8x80 - 1 - 140 - 92100-08080-0S
Bolt, hex 10x82 - 141 - 7414 - 90048-300-000
(Bolt located in LH rear corner crankcase)
Per 69/7 manual, these two different bolts are indicated as used on 1 - 7414, however the reference number for small bolt is "10" and the reference number for the large bolt is "10A"