Most times when you are using your outboard motor, you will discover that your outboard motor cannot reach full speed.
One of the most common reasons why this occurs is always due to less power generation from the outboard motor engine.
When it comes to evinrude outboard not running at full speed, less power generation from the engine is usually one of the common causes.
When less power is generated from an evinrude outboard motor engine some of the reasons behind it include making use of a bad fuel, bad carburettor, bad ignition system, bad spark plug and even other reasons like overloading.
When any of these problems occur, the evinrude outboard motor will not be able to perform well when it is accelerating.
Why Is Evinrude Outboard Motor Not Running At Full Speed
1)Bad Carburetor
For an evinrude outboard motor to perform well, the carburettor has to also perform well.
This is because the carburettor plays a vital role in the level of power that is generated by the evinrude outboard motor.
Power is generated when there is a combustion in the engine of the evinrude outboard motor.
But for this combustion to take place, fuel has to be supplied to the combustion chamber.
The supply of fuel to the combustion chamber is being made possible by the carburettor.
The carburettor helps in releasing the right volume of fuel for combustion to the combustion chamber.
If the carburettor is not functioning well, then the combustion chamber will not receive the right volume of fuel it needs.
Due to this the engine will perform poorly due to less power generation.
Solution
a)Use Good Carburetor
In running your evinrude outboard motor you have to make sure that you always use a good carburettor.
If you discover that your carburettor is having some minor faults, you can easily rebuild the carburettor.
This will help in increasing the performance and level of power generated from the outboard motor engine.
2) Bad Spark Plug
One of the most important components in the combustion chamber is the spark plug.
This is because before power is generated in a combustion chamber, the fuel has to be ignited.
But for this ignition of fuel to take place in the combustion chamber, there is a component that makes this possible.
This is where the role of the spark plug comes in.
The spark plug helps in producing the spark that ignites the fuel mixture in the combustion chamber.
With this, power is generated from the outboard motor for use in moving the propeller.
But if the spark plug is not good, then an efficient combustion will not take place in the combustion chamber.
This will lead to less power generation from the outboard motor which will affect how the outboard motor performs especially when it is trying to reach full speed.
Solution
a)Use a Good Spark Plug
If you discover that the spark plug that you are using in your outboard motor is not functioning well you will have a bad performance.
To solve this, you have to make sure that you change the outboard motor spark plug to a good one.
3) Bad Fuel
In running an evinrude outboard motor, fuel is very important.
This is because without fuel, there can be no combustion in the combustion chamber.
When this happens, then the outboard motor will not be able to function well because there will be no power to move the propeller.
This is why you have to make sure that you avoid the use of bad fuel in running your evinrude outboard motor.
If fuel stays for too long without use, do not make use of it in running your outboard motor.
Also avoid fuel that has water in it or dissolved solids in it.
These things reduce the efficiency of the fuel ignition when it is in the combustion chamber.
Solution
a)Use Good Fuel
If you value the performance of your outboard motor, you have to make sure that you don’t compromise on the fuel quality that you make use of to run your evinrude outboard motor.
That is why you have to make sure that you always use a good fuel quality.
This has to do with fuel that has not been kept for too long.
A good fuel also does not contain water or dissolved solutes in it.
4) Faulty Ignition Coil
Another reason why evinrude outboard motor is not running at full speed is due to faulty ignition coil.
The ignition coil helps in supercharging the electric charge it receives.
This is what helps the spark plug to easily ignite the fuel mixture in the combustion chamber.
But if the ignition coil is bad, then the spark that is sent from the ignition coil to the spark plug will not be enough for an efficient combustion to take place.
This will lead to a reduction in the level of power that is produced from the evinrude outboard motor.
Solution
a)Use a Good Ignition Coil
In achieving a good performance from your outboard motor that is made by evinrude, one of the components you have to make sure that it works well is the ignition coil.
Irrespective of how other parts are working well, if the ignition coil is not functioning properly then the outboard motor will perform poorly.
To avoid this, you have to make sure that you use a good ignition coil in running your evinrude outboard motor.
5) Faulty Fuel Pump
The use of a bad fuel pump will cause evinrude outboard not to run at full speed.
With the help of the fuel pump, fuel is being delivered to the carburettor at the right pressure and volume.
When the fuel pump in an outboard motor develops a fault, the volume of fuel delivered to the carburettor will be greatly affected.
In such a case, the faulty fuel pump in an outboard motor will deliver less volume of fuel to the carburettor.
This will affect the amount of power generated from the combustion chamber.
As a result of this, the outboard motor will struggle to perform especially when it is trying to reach full speed.
Solution
a)Use Good Fuel Pump
To achieve a good performance from your outboard motor, you have to make sure that the fuel pump is functioning well.
If the fuel pump developed a fault, make sure that you change it to a good one.
This will help your evinrude outboard motor to perform well and reach full speed easily.
6) Damaged Fuel Line
The fuel line in an outboard motor helps in sending fuel from the fuel tank to the fuel pump which then delivers fuel to the carburettor.
But sometimes the fuel line can suffer damage.
This can occur in a way that causes the fuel line to leak fuel.
This will lead to loss of pressure and also loss of fuel through the leakage point in the fuel line.
When this occurs, the performance of the outboard motor will also be affected due to less supply of fuel.
Solution
a)Use Good Fuel Line
When you discover that the fuel line in your evinrude outboard motor is bad, you have to make sure that you change it.
In changing it to a good one, make sure that you use a high-quality fuel line.
This will help in reducing the chances of the fuel line developing faults easily.
7) Bad Exhaust System
A bad exhaust system can make evinrude outboard not to run at full speed.
When the engine of the outboard motor is functioning, there is always a constant combustion that goes on in the combustion chamber.
But in the combustion process that takes place in the combustion chamber, there are always by products that are produced.
This byproducts are never good to the functionality of the engine.
That is why they need to be sent out.
But for these by products to be released, the exhaust system has to play a role.
The exhaust system of the outboard motor helps in removing the byproducts from the outboard motor combustion chamber.
This helps in achieving a good performance from the outboard motor.
But when the exhaust system of the outboard motor is not functioning well, this by products which are mostly gases and carbon will be stuck in the combustion chamber.
This will cause a very serious problem.
One of the problems it will cause is that it will lead to overheating.
Another problem is that it will lead to the fouling of the spark plug due to the retention of carbon in the combustion chamber.
This causes a reduction in the performance of the evinrude outboard motor especially when it is trying to reach full speed.
Solution
a)Fix Faulty Exhaust System
When you discover that the exhaust system of your outboard motor is not functioning well, one of the things that you will see is that the performance of the outboard motor will also reduce.
This will make it extremely hard and impossible for the outboard motor to reach a full speed.
To correct this, you have to make sure that you fix any issue that occurs in the exhaust system of the outboard motor.
8) Overloading
Overloading is a very bad practice that has to be avoided whenever a boat operator is making use of an outboard motor.
This is because overloading creates an extra strain in the outboard motor.
All outboard motors have calibrations on the maximum load you can easily carry.
This is why outboard motors have different power production levels.
A 5 horsepower outboard motor will not be able to push the weight of load a 300 HP outboard motor can push.
If you impose such a load on the smaller 5 horsepower outboard motor, then the 5 horsepower outboard motor is going to suffer a very high performance lag.
That is why you have to make sure that you do not exceed the load moving capacity of the outboard motor.
Solution
a)Avoid Overloading
The best way in avoiding the imposition of load your outboard motor cannot comfortably carry is to make sure that you avoid overloading your boat.
When the boat is not overloaded the outboard motor also will not be overloaded.
To achieve this, you have to make sure that you know the maximum load your outboard motor can carry.
This can be easily seen in the manufacturer’s manual of the outboard motor.
When you see the range, make sure that you do not exceed the load range.
This will have your outboard motor to perform well when it is being used.
9) Overheating
Overheating is one of the biggest problem that damages an engine easily.
This can also happen to an evinrude outboard motor if it is not properly taken care of.
When an overheating occurs in an outboard motor, it leads to loss of power produced from the outboard motor engine.
When this occurs, the outboard motor will always struggle to reach full speed especially when it is accelerating.
Overheating in an outboard motor is commonly caused by a faulty cooling system or low oil level.
Solution
a)Fix Faulty Cooling System
When you discover that you are having an overheating in your evinrude outboard motor you have to check the cooling system.
While checking the cooling system, if you observe that there is a problem in any of the cooling system components, you have to make sure that you change it to a good one.
10) Lack Of Timely Maintenance
Performing timely maintenance on your outboard motor is very important.
This is because it is during the maintenance time that some of the problems of an outboard motor can be discovered.
This can include worn out parts or an oil that is due for change.
With that, it can be easily be repaired to avoid the faulty part from getting extremely damaged.
When some of the components of the outboard motor are critically damaged, it can extend the damage to other components too.
But with timely maintenance, this damage and faulty parts can be easily detected and changed.
This will help your evinrude outboard motor to perform well.
To avoid situations in which evinrude outboard is not running at full speed, you have to make sure that you perform timely maintenance and change faulty parts.