If you are going to change oil filter at the time as the oil the engine will require 2.8 liters just done my 1981 750 seca r hope this helps
I don't want to get in any trouble making copies and selling them think I can give them away though ?
Here's a high res scan.. https://www.totalmotorcycle.com/wp-content/uploads/2016/12/650SecaxjenginecutawayBIG.jpg?d=1&i=1
It's a pretty cool cutaway illustration. I love that stuff. I have a book full of them of WW2 airplanes. Super cool. Your tattoo artist would ask you to simplify it. A lot. It'd have to be huge to include that much detail.
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