You can try a heavier weight but if it's smoking it probably needs a rebuild (burning oil)
the Honda wins every time
10w 40
according to YAMAHA its 1.2 litres!!!
2004 Yahama 4 stroke 225hp oil filters
Engine oil is 10w 40
750ml - 3/4 of a quart
A local parts house recommends using a motorcycle grade 20W50 oil (not a vehicle grade).
About 2.5 Quarts of 10w 40 wet clutch oil.
21/2qrts 20w50
yahama = יאהאמה
I use 10W30 in my 1989 Yamaha Warrior.