All great info, thanks.
So I need to add that the item that sent me looking for tech manual and parts manual data is that my '79 F Standard has an engine from an
'80... S/N 4M4 004426.
Not a show stopper in itself however, while looking at various sites that you folks told me about for drain plug oil seal(s)... While changing the oil I discovered that this engine has Two (2) drain plugs and I find it odd that all of the diagrams that I am finding only list one (1)
Appreciate all the information, again, the T/M listing here is great, very detailed. I am a bit of a T/M geek for the Triumphs and Moto Guzzis that I have here and thought I would find the same for the Yamahas.
Cheers,
Rob