Its 540lbs dry plus the added weight of 16.2 gallons of gas for a total of approx 650lbs. 1000cc motor has to be taking 2.3oz of motor oil with a weight of another almost 5lbs. Curious if they include the battery in this weight spec. So id say this ORCA is gonna be totaling in at 660+. Lmao, Thats not a portable unit even in my yard. They should make it with a ATV or tractor hitch on it.