How much fuel does a 4 stroke outboard use?
On average, an in-tune four-stroke gasoline engine will burn about 0.50 pounds of fuel per hour for each unit of horsepower. Likewise, a well-maintained diesel engine burns about 0.4 pounds of fuel per hour for each unit of horsepower it produces.
How many miles per gallon does an outboard motor get?
A lighter boat with a modern outboard motor will be more efficient than an older boat with an inboard engine. A typical cabin cruiser can expect to get anywhere from 1 – 2 miles per gallon.
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.
What is more fuel efficient 2 stroke or 4 stroke?
2-strokes are more fuel efficient than 4-strokes when run at or just above idle, and again above three-quarter throttle, because the fuel is being monitored so precisely. The two engine types consume about the same amount of fuel in the middle of the rpm range, he says.
How fast is a 90 hp Yamaha outboard?
With the Yamaha F90 fitted to a 5.35m Bar Crusher we saw a top speed of 61km/h (33 knots) at 5700rpm with a fuel burn of 35.85 litres per hour while a more modest cruising speed of 33 km/h (18 knots) at 3500rpm delivered 10.85L/ hour offering a decent range from a 100-litre tank.
How much fuel does a Mercury outboard use?
Select Mercury Outboard Test Model Stroke Displacement Fuel consumption WOT Mercury 90 efi 4 stroke 2.1 L – 126 cid 10.0 GPH Mercury 115 efi 4 stroke 2.1 L – 126 cid 10.6 GPH Mercury 150 efi 4 stroke 3.0 L – 181 cid 14.2 GPH Mercury Verado 175 Efi 4 stroke 1.7 L – 104 cid 17.8 GPH
How big of a fuel line do you need for an outboard engine?
But most smaller outboards have fittings or quick connects on them that are set for a 5/16″ hose. It’s basically the standard hose for the smaller engines. Like we said in the beginning, the 3/8″ line is required on anything that is larger than a 115 HP engine. Look at it like this. You can breathe through a straw.
How to find out the fuel economy of a boat?
So I have decided to create a user-submitted database of boats and their fuel economy. The following results are displayed in alphabetical order by boat make, newest first. Data is displayed in Statute MPG/MPH and is updated hourly from submissions.
Select Mercury Outboard Test Model Stroke Displacement Fuel consumption WOT Mercury 90 efi 4 stroke 2.1 L – 126 cid 10.0 GPH Mercury 115 efi 4 stroke 2.1 L – 126 cid 10.6 GPH Mercury 150 efi 4 stroke 3.0 L – 181 cid 14.2 GPH Mercury Verado 175 Efi 4 stroke 1.7 L – 104 cid 17.8 GPH
Why does my 1996 Mercury 115hp outboard use soooooo much fuel?
Lower compression = higher fuel consumption because the cylinders do not hold fuel as well as when the are fresh. These motors are roughly 50% efficient when running good. It’s just the nature of the beast. Re: Why does my 1996 Mercury 115hp outboard use soooooo much fuel??
How many gallons of fuel does a Mercury Optimax use?
Mercury OptiMax Fuel Consumption : Mercury OptiMax 75 hp – 6.9 Gallons per hour | Mercury OptiMax 90 hp – 7.7 Gallons per hour | Mercury OptiMax 115 hp – 9.9 Gallons per hour | ProXS : Mercury OptiMax 150 hp – 14.2 Gallons per hour | Mercury OptiMax 200 hp – 18.5 Gallons per hour | Mercury OptiMax ProXS 225 hp – 20.5 Gallons per hour
How many gallons of fuel does a 115hp outboard use?
So, at WOT a 115 would use 11.5 gallons per hour. Soooo based upon the above numbers, you ran at a reduced speed but for 2 hours and consumed 15 gallons; 7.5 gallons per hour. Sounds about right to me. Re: Why does my 1996 Mercury 115hp outboard use soooooo much fuel??