How much fuel does a 115 hp outboard use?

Older two-cycle engine fuel consumption can be roughly estimated in gallons-per-hour by dividing the horsepower by ten. A 115-HP older two-cycle engine will consume about 11-GPH at full throttle.

How do you calculate fuel consumption for a boat?

To determine an average fuel usage at gallons per hour (gph), divide horsepower by 10. Therefore, a boater with a four-stroke, 250-hp marine outboard engine running at full throttle, or about 6,100 rpm, is using 25 gph. But, an engine is most efficient at 75 to 80 percent of rated output rather than at full throttle.

How many gallons per hour does a boat use?

An average boat MPG or gallons per hour is around 1-4 gallons per mile at an average of 20knots. keep in mind that there are hundreds if not thousands of boat brands, dozens of boat engine sizes and brands, and types (jet, outboard, inboard, and I/O)(2-Stroke and 4-Stroke). There is also fuel type, gas or diesel.

How much fuel does a 90 hp outboard use?

Your 90 would burn a little more than 9 gallons per hour at wot. figure your top end speed, and you get miles per gallon at wot. Most motors get their best mileage somewhere around 3000-4500 rpms.

How many hours will a Yamaha 115 four stroke last?

The reliability of Yamaha’s motors will vary depending on which motor you choose. Because they offer both inboard and outboard, they could have a lifespan that ranges from 1,500 to over 3,000 hours.

How fast is a 115 outboard?

51 mph
The I-4 V MAX SHO 115 is Yamaha’s fastest 115-hp four stroke, ever, with a top speed of nearly 51 mph. * On top of its impressive speed, it features tech unheard of in its class, including a long-track intake system, free-flow exhaust and knock sensor. Still it’s 10 pounds lighter than a competitor’s.

What is the most fuel efficient trawler?

The Beneteau 44′ Swift Trawler 50 (anything but “swift”) at its top cruising speed of 20 knots goes a half nautical mile per gallon (40 gph) while the triple IPS 50z at 35 knot cruise goes 3/4’s of a mile per gallon (48.5 gph).

Is it bad to run a boat full throttle?

Does this mean an engine should never run at wide-open throttle (WOT)? Absolutely not. Modern engines are designed to handle WOT. Also, during break-in going to WOT, as prescribed by the owner’s manual, is necessary to properly seat the pistons’ rings.

Why are boats so fuel inefficient?

Why do boats burn so much gas? The main reason why boats will always burn more gas than cars is they run on water. Aerodynamics, wind resistance, waves, and drag affect the fuel consumption of a boat. Basically, a boat needs to use more fuel to cover the same distance a car will cover.

How long can you run an outboard at full throttle?

In the case of that engine, the manufacturer specifies that it can run at WOT for 30 minutes without any ill effects.

What kind of engine does the Evinrude 115 have?

Hi Chimo, if that is your boat in your avatar, you have 90 degree V4 2.0L looper engines are they are very powerful, but thirsty compared to todays engines. If you want to confrim this post your full model numbers.

How much horsepower does a 90 degree V4 have?

Garry is correct the old 90 degree V4 ran for many years with HP rating from 85-135HP and in the earlier 1990s OMC came out with the 60 degree loop charged engines that are much better in all round performance, fuel economy and noise.

What’s the fuel economy of a 115 Garby Yami?

I had an older 115 garby yami and the fuel use would be as Spaniard King suggested .5 to 1 k per L. I saw a graph once on the fuel use at different revs. What suprised me was that the better economy was higher up in the rev range, like 4 to 4.5 thousand rpm. 3600 to 4200 seems to be a good happy spot for my two.