Yes
The mix ratio is 50:1, but be sure to use a good 2 cycle oil such as Husqvarna's or Echo's. Do use a motor boat or motorcycle 2 cycle oil. Those are not rated for the small engines like used in the 141 chainsaw. Best bet is to buy the oil at a reliable mower shop.
2quarts
Husqvarna fuel mixture ratio is 50:1
50:1 with Echo oil use 100ml of echo oil to 5 liters gas
50"1 with the proper oil
50:1 with the proper oil
50 to 1
40:1
50/1
40:1
50:1 with the appropriate two cycle oil.
http://www.carspace.com/guides/Toyota-Echo-How-to-change-oil