Question: How Long Can You Run An Outboard At Full Throttle?

Will raising outboard increase RPM?

Raising the motor one hole will most likely increase the rpm’s by a couple hundred, you should gain in top speed as well..

Is Wide Open Throttle bad?

Every engine has a WOT RPM operating range that is specified by the manufacturer. Not being within this range can not only affect performance, but damage the motor as well.

Should you cover your outboard motor?

This can lead to corrosion in the charging system, on wiring connectors, and on the throttle and shift linkages. So don’t cover the motor. If you have your boat shrink-wrapped, ask them to either work around the motor, or leave gaps around the transom so some air can get to the motor.

Should I run the gas out of my outboard motor?

There is no harm in running your motor out of fuel with four strokes engines, but it’s not necessary to do in most cases (again, refer to your owners manual).

How much water should be coming out of outboard?

Re: How much coolant water should be comming out of my outboard? Usually the cooling water pisses out of a small hole under the power head. There should be a hols approx 3 mm diameter facing down and a bit out. Normally a continuous flow expected, unless mercs are totally different.

Is it bad to run an outboard engine at full throttle?

As long as you are propped correctly and can hit the upper end of the RPM range, [to run an engine at its maximum throttle all the time] is not a problem. Most smaller engines have two speeds, OFF and WOT. Very rarely does an engine wear out. Keep up with maintenance and you will be fine.

How many hours is too many for an outboard motor?

I would start to think twice above 2000 hours or below 10 hours a year. More important is the way it’s been maintained – I would rather a well cared for 1500 hour 10 year old engine than a neglected 5 year old 50 hour engine.

How long can you run an outboard on muffs?

10 to 20 minutes tops. Shut it down and let it cool.

What RPM should I run my outboard?

The full-throttle limit for modern marine gasoline motors ranges from 4800 to 6000 rpm. (By comparison, your car’s engine probably turns less than 2500 rpm at freeway speeds.) Most mechanics and engineers suggest the best cruising speeds are achieved at 3400 and 3800 rpm respectively.

How many hours does a 2 stroke outboard last?

2,000 hoursTwo-stroke outboard motors can reasonably live between 1,500 to 2,000 hours before needing major maintenance. It can last even more with proper maintenance and preventative measures.

Why is my outboard not pumping water?

Turn the engine off and check for anything, such as weeds or trash, which may be blocking the water intake. If a foreign object is present, remove it and restart the engine after it has returned to normal temperature. In most outboard motors, the water output is a small tube-like structure that can easily get blocked.

Is 400 hours a lot for a boat motor?

While higher hours typically won’t impact the performance or reliability of a boat in a negative way, it will have an impact on the value of a boat, especially if a boat has “high hours” for the year. 400 hours won’t harm the resale value on a 2010 boat, but if a boat is a 2018 that is a different story.

Will a jack plate increase speed?

Although they may be a bit pricey, hydraulic jackplates can vastly improve the performance of your bass boat — both at the top end and in the ability to run shallower at low or high speeds. They can even improve the ride.

Should you run a boat at full throttle?

As long as an outboard is propped correctly, running at full throttle is fine.

How far below the bottom of the boat should the prop be?

If you have a short shaft motor, the top most part of the transom and the lower most part of the boat should be about 15 to 16 inches. For a long shaft, I think 20 to 21 inches is correct.

What happens if your outboard shaft is too long?

When the right length motor is hung on the transom of a boat, the cavitation plate (the large plate that extends out over the propeller) should be even with the very bottom of the boat. … At least if its too long you can raise the motor or “build up” your transom.

How do you know if your outboard is too high?

Too high usually results in low water pressure, prop letting go in turns, or lack of bow lift are usually the telltale signs. Sometimes porpoising is caused by too much bow lift and dropping the motor will give it more bite and make it worse.

Is 500 hours a lot for an outboard motor?

Generally I’d say anything <500 could be considered a "low hour" motor, assuming it's more than 1-2 years old (500 hours on 1 y oboat is going to get negative reaction from some).

What is considered low hours on an outboard motor?

An outboard with 1-200 hours would be low if verifiable. Re: Low Hours??? What does this mean. 1:00 A.M. until 6:00 A.M. Any hours after this is considered “high”.

Which is better a 3 or 4 blade prop?

A 3 blade propeller usually offers top speed performance while a 4 blade propeller provides maximum thrust and smooth cruising operation. Four blades have some features of their own, though. They often provide more lift at the stern which will help accelerate the hull, especially if it is stern heavy.

Does Prop diameter affect RPM?

A prop’s two dimensions each affect performance in different ways. For every inch of change in prop diameter the RPM varies by about 500 RPMs (up or down) and every inch of pitch changes the RPM by approximately 150 to 200 RPM.