Evinrude E-NATION, for those dedicated to water, power, fishing and fun
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Skipper
Posts: 7
Registered: ‎03-17-2019

Hesitation

Hi All, I have an Evinrude e50pl4ee 50hp 3 cylinder 4 stroke.(rebranded Suzuki as I understand) I recently purchased a pontoon and this motor came with it. It had been winterized and sat for the winter. I am in NM. I have had it out on the water twice and it starts right up and runs well. The only thing I noticed is that it has a slight hesitation when throttling up then runs good. I was wondering if this could be due to the old fuel which I topped off and added stabil marine. Should I just keep running her to get the old fuel out or any suggestions?
Admiral
Posts: 8,334
Registered: ‎07-14-2011

Re: Hesitation

 

 

Most likely the hesitation, if slight, is caused by restricted injectors from stale fuel. It is best to have them removed and sent out to a professional for cleaning and testing. At the same time the rest of the fuel system along with the vapor separator tank (VST) cleaned thoroughly and any filters should be replaced.

 

If the other items are not cleaned, they could contaminate your nicely cleaned and serviced injectors.

 

In rare cases a throttle position sensor can affect acceleration and cause a hesitation.

 

Check plugs and compression also. A leak-down test tells even more about the motor's health

 

If you are doing your own servicing, obtain a factory service manual for reference.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Captain
Posts: 553
Registered: ‎08-20-2017

Re: Hesitation

As a dealer tech I rarely see any of those 4 stroke engines. But most likely some restricted jets in the carburetors. Fuel treatment helps to preserve fuel, it does not "fix" stale or bad fuel. Best to start with fresh fuel and Evinrude 2+4 fuel conditioner.
Skipper
Posts: 7
Registered: ‎03-17-2019

Re: Hesitation

Thank you for the replies, the injectors and fuel filters are pretty simple to get to. I see videos on how to diy flush the injectors and it looks pretty straight forward. How much does it cost to have them professionally done? There are 3 of them
Admiral
Posts: 8,334
Registered: ‎07-14-2011

Re: Hesitation


@Fenderdude wrote:
Thank you for the replies, the injectors and fuel filters are pretty simple to get to. I see videos on how to diy flush the injectors and it looks pretty straight forward. How much does it cost to have them professionally done? There are 3 of them

Your dealer can give you an estimate on the cleaning. Insist on a complete and thorough fuel system service or you may be sending the injectors out again if they get restricted by  remaining upstream trash in the fuel components.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.