Problem is that what you have there are owners manuals (you can tell from the front page, where it says "Owners Manual") and parts lists, not service manuals. The owners manual will be supplied with any new engine. The parts list, while handy, is not exactly a guide to disassembly/reassembly of you rmotor.
I have posted the link to this site quite a few times before for people asking about Yammies. Unfortunately, they do not have the service manual (aka workshop manual) available, except for purchase.
As Cod pointed out, you rmain thrust (the 350 owners manual available for perusal) was incorrect. The 350 manual is not there (though the 2-stroke 300's are.) The 350 specs and other performance info is available, but not the manual.
And, yes, I have a Yamaha F115. It came with the owners manual. I purchased the shop manual for it.