10W40 motorcycle and ATV oil for a stock motor, you can use 20W50 if you are running competition or it's REALLY hot where you live. Don't run 20W50 in a cooler climate, it's too thick. Also, don't use automotive engine oil, the clutches and the transmission need the proper additives found in motorcycle oil to work correctly
10w40
what grade of oil goes in a 2006 yamaha sirago
2 cycle.... since it a 2 stroke
plain 2 cycle oil
like 5 quarts... like 5 quarts...
10w 40...yamalube is the best suggestion
I have the same exact wheeler, and mine holds about 2.5 to 3 quarts of oil.
From Victor's Shop, I usually use GN4 motorcycle oil 10W40
15w/30 but that is hard to find so I use15w/40
200litres
4cycle
Chase Rocks