Evinrude E-NATION, for those dedicated to water, power, fishing and fun
Posts: 3
Registered: ‎08-23-2016

Failed EMM


Back in late summer had a no oil alarm and subsequent shutdown.

Repairs by Cillins Inc. where I purchased the boat was a new oil pump.

Cool with that. But then the EMM would not communicate. I was told a new EMM was the answer,

my question here is no one was able to tell me exactly what was wrong with the EMM?

(EMM serial # 1000816) Can anyone shed some light on this or am I being too concerned?

Just a lot of money for the new part $1475, not a drop in the bucket.

Posts: 9,204
Registered: ‎07-14-2011

Re: Failed EMM



Diagnosing a faulty EMM takes skill and special diagnostic equipment along with a laptop and special software from Evinrude.  Because it contains hundreds, if not thousands, of individual electronic components an EMM is very high-tech and reliable, but anything can happen. Talk to your technician and ask for a printout of the engine report. If you post it here we may be able to see what has happened.


The few EMMs we see with problems most often have a history of overheating or intermittent battery connections such as using wing-nuts on the terminals.




"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.