You have to read the user manual and then concern your mechanic.
Yamalube motor oil.
I use 10W30 in my 1989 Yamaha Warrior.
1.13 liters
10w-40
21/2qrts 20w50
yamalube is the best
what type of oil should i use when i cange the oil in my 2006 banshee Belray Gear Saver,75w #93150 10W30 motor oil, says in the Clymer shop manual for the Yamaha banshee. 1987-2004. but i use belray gear saver 80W, meant for 2 stroke transmissions.
Use 10w40 4-stroke motorcycle oil. DO NOT use any type of automotive oil; motorcycle oil is needed because of the wet clutch.
trochoid
sae 30
10w30 synthetic would be my recommendation.
winter- 5w30 summer-10w30