How many quarts of oil are needed to change the oil in a 1979 Yamaha XS650 motorcycle?

Also, where is the oil filter located. Thank you.How many quarts of oil are needed to change the oil in a 1979 Yamaha XS650 motorcycle?
It takes 2 to 2.5 quarts





There's a filter on right hand side of engine,,


under that round plate on the clutch cover.





They also have a screen inside the rectangle plate underneath engine,,where the drain plug screws in





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Here's an article that may help





http://home.comcast.net/~fzmax/XS/05_Eng鈥?/a>








Here's a good site for XS650 general Info.





http://www.650central.com/





On that site,,,here's a source for the improved sump screen if you're interested in that.


Scroll down the page,you'll see it


http://www.650central.com/engine.htm








Here's their brief comment on ';lubricants';.


It's worth a read,,and taking it seriously.


http://www.650central.com/lubricants.htm








Hope that helps!