We usually run our 8hp Tohatsu with the throttle just cracked open and it quietly pushes our 24' boat along at around 3.5 kt in smooth water. In rougher conditions, we might open it up a bit more. Only when pushing into pretty heavy wind (30+ kt) and sea do we have to open it to maybe half throttle. Do you have any idea what the fuel consumption might be under low throttle conditions?
I've been figuring maybe 1/2 gallon per hour, but haven't been able to find any good information. It would be good to know to get an idea of our motoring range.
Not really...I found the info on one of the Tohatsu websites. It showed the 9.8 4 stroke burning 1 gal per hour @5500 rpm. The 6hp 4 stroke burned 0.5 gal per hour at similar rpm. My motor is the 6hp and I have yet to burn a full tank in an entire summer-and we go a couple times a week. Bottom line is...they don't burn much gas.